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CN108084296A - There is the composition of initiated polymerization and the method for preparing acrylamide copolymer - Google Patents

There is the composition of initiated polymerization and the method for preparing acrylamide copolymer Download PDF

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Publication number
CN108084296A
CN108084296A CN201611020531.2A CN201611020531A CN108084296A CN 108084296 A CN108084296 A CN 108084296A CN 201611020531 A CN201611020531 A CN 201611020531A CN 108084296 A CN108084296 A CN 108084296A
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water
composition
organic amine
initiator
weight
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Inventor
伊卓
杜超
方昭
刘希
胡晓娜
张文龙
祝纶宇
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Sinopec Beijing Research Institute of Chemical Industry
China Petroleum and Chemical Corp
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Sinopec Beijing Research Institute of Chemical Industry
China Petroleum and Chemical Corp
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00Processes of polymerisation
    • C08F2/46Polymerisation initiated by wave energy or particle radiation
    • C08F2/48Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/52Amides or imides
    • C08F220/54Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/56Acrylamide; Methacrylamide
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/52Amides or imides
    • C08F220/54Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/58Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
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    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/58Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
    • C09K8/588Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60Compositions for stimulating production by acting on the underground formation
    • C09K8/84Compositions based on water or polar solvents
    • C09K8/86Compositions based on water or polar solvents containing organic compounds
    • C09K8/88Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/882Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/52Amides or imides
    • C08F220/54Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/58Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
    • C08F220/585Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine and containing other heteroatoms, e.g. 2-acrylamido-2-methylpropane sulfonic acid [AMPS]

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Abstract

The present invention relates to petrochemical industries, disclose a kind of method for having the function of the composition of initiated polymerization and preparing acrylamide copolymer.The composition for having the function of initiated polymerization contains organic amine and at least one Formulas I compound represented, and the weight ratio of the two is 1:0.0001‑10000.In addition, the invention also discloses a kind of method for preparing acrylamide copolymer, including:In the presence of initiator, monomer mixture is made to carry out polymerisation in water, the initiator is provided by the composition of the present invention.By using benzophenone compound as initiator, higher polymerisation efficiency can be obtained under relatively low initiation temperature (acrylamide copolymer viscosity average molecular weigh is higher).

Description

There is the composition of initiated polymerization and prepare acrylamide copolymer Method
Technical field
The present invention relates to petrochemical industries, and in particular, to it is a kind of have the function of the composition of initiated polymerization and The method for preparing acrylamide copolymer.
Background technology
In conventional oil reservoir oil displacement process, high molecular weight moieties hydrolyzed polyacrylamide can be realized under low concentration The winding state of molecule interchain, Efficient Adhesive Promotion is notable, and chemical stability is preferable, and viscosity retention ratio is high, can constantly reduce water Oily mobility ratio improves swept volume, reduces and involves the oil saturation of oil reservoir, so as to improve recovery ratio, therefore be oil field three times Widely used one kind Polymer Used For Oil Displacement product in oil recovery.With employing for conventional oil reservoir recoverable reserves, the oil of reserves is taken over Tibetan condition is more harsh, it is desirable that flooding polymers have higher heatproof, salt resistance and anti-shearing performance.
Therefore, it is intended that by using novel polymeric method, research novel initiation system polymerize to obtain the temperature-resistant anti-salt displacement of reservoir oil Object.The common production technology of polyacrylamide pulvis product has acrylamide monomer homopolymerization posthydrolysis technique and acrylamide at present Monomer and acrylic monomers copolymerization process.No matter using which kind of technique, polymerization process is mainly by acrylamide and acrylic acid etc. Monomer is made into certain density mixed aqueous solution, the thermal initiations such as oxidized-reduction system or azo-compound or light initiation polymerization, It is post-treated again to obtain product.The initial initiation temperature of conventional method is high, and polymerization process is not easy to grasp, and product quality is caused to be difficult to control System, especially all there are larger fluctuations for product dissolution time and viscosity.In the light-initiated preparation POLYACRYLAMIDE FLOODING of existing correlation In the report of agent, as CN1590421A is used by persulfate, NaHSO2·CH2O·2H2O, azo-compound and complexing agent group Into photosensitizer, by acrylamide monomer and cationic monomer obtain copolymerization powder product;CN101353392A using photosensitizer- Photosensitizer or common oxidation-reduction trigger system are helped, is poured in plane and is spread out and put on as flake after material is mixed, through ultraviolet light Irradiation, obtains high molecular weight instant cation polyacrylamide;CN102321221A discloses a kind of star polyacrylamide The preparation method of polymer using aqueous solution photopolymerization mode, triggers acrylamide using thioxanthone modified polyethyleneimine Wait monomer copolymerizations synthesis Star Polyacrylamide.The polymer resistance to mechanical cutting performance that the above method obtains is enhanced, but work Skill operation is relatively cumbersome, and obtains that molecular weight of product is small, and practicability has to be hoisted.
The content of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide one kind to can be used for obtaining high gather at a lower temperature That closes reaction efficiency has the function of the composition of initiated polymerization and the method for preparing acrylamide copolymer.
To achieve these goals, in a first aspect, there is the combination of initiated polymerization the present invention provides a kind of Object, said composition contains organic amine and at least one Formulas I compound represented, shown in the organic amine and at least one Formulas I The weight ratio of compound is 1:0.0001-10000,
Wherein, n is the integer of 1-255.
Second aspect, the present invention provides a kind of method for preparing acrylamide copolymer, this method includes:In photopolymerization Under reaction condition, in the presence of initiator, monomer mixture is made to carry out polymerisation in water, wherein, the initiator is by Composition described in one side provides, and the monomer mixture contains acrylamide.
By using benzophenone compound as initiator, it can be obtained under relatively low initiation temperature and glue equal molecule The POLYACRYLAMIDE FLOODING polymer for 2800-3700 ten thousand is measured, and obtained polymer has good temperature-resistant anti-salt and resists Cutting performance.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Specific embodiment
The specific embodiment of the present invention is described in detail below.It is it should be appreciated that described herein specific Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The endpoint of disclosed scope and any value are not limited to the accurate scope or value herein, these scopes or Value should be understood to comprising the value close to these scopes or value.For numberical range, between the endpoint value of each scope, respectively It between the endpoint value of a scope and individual point value and can be individually combined with each other between point value and obtain one or more New numberical range, these numberical ranges should be considered as specific open herein.
The composition with initiated polymerization provided by the invention contains shown in organic amine and at least one Formulas I The weight ratio of (water solubility) benzophenone compound, the organic amine and at least one Formulas I compound represented is 1: 0.0001-10000 is preferably 1:0.002-500, more preferably 1:0.1-10 is most preferably 1:0.1-1.
(water solubility) benzophenone compound that the present invention uses has the structure shown in following formula I:
Wherein, n is the integer of 1-255 (being preferably 1-250, more preferably 5-50 is most preferably 10-35).
In the composition of the present invention, the organic amine can be that the various common amines in this field reduce auxiliary agent, preferably feelings Under condition, the organic amine is at least one of compound shown in Formula Il:
Wherein, R11、R12And R13It is each independently hydrogen, straight chained alkyl (C1-C5), branched alkyl (C1-C5), cycloalkyl (C1-C6), aromatic radical (C1-C6), alkoxy (C1-C6), halogen atom, nitro, sulfydryl, amino, alkylamino radical (C1-C6), arylamine Base (C1-C6), alkane hydroxyl (C1-C6) or R11、R12And R13In both arbitrary be cyclized into (five yuan, hexa-atomic, seven yuan or eight yuan) phenodiazine Heterocycle, and R11、R12And R13It is asynchronously hydrogen.
It is highly preferred that R11、R12And R13From independently being hydrogen ,-CH3、-C2H5、-CH2CH2OH、-CH(OH)CH3、- CH2CH2NH2、-CH(NH2)CH3、-C2H4N(CH3)2、-CON(CH3)2Or R11、R12And R13In both arbitrary be cyclized into phenodiazine Own ring, and R11、R12And R13It is asynchronously hydrogen.
It is further preferred that the organic amine is N, N, N ', N '-tetramethylethylenediamine, N, N- dimethylethanolamines, N, N '-dimethyl piperazine, N, N, N ', N '-at least one of tetramethylurea and triethanolamine.
According to the present invention, in order to further improve polymerisation efficiency, the composition can also contain water-soluble azo Series initiators.The content of water-soluble azo series initiators is not required particularly, it is preferable that the organic amine with it is described water-soluble Property azo initiators weight ratio be 1:0.0001-10000, more preferably 1:0.002-500, further preferably 1:0.1- 10, it is most preferably 1:0.1-1.
The water-soluble azo series initiators can be the common water-soluble azo series initiators in this field, preferable case Under, the water-soluble azo series initiators are selected from 2,2 '-azo double (2- amidine propanes) dihydrochloride, 2, double (the 2- miaows of 2 '-azo Oxazoline propane) at least one of dihydrochloride and 4,4 '-azo double (4- cyanopentanoic acids), further preferably 2,2 '-azo Double (2- amidine propanes) dihydrochlorides.
A preferred embodiment of the invention, the composition also contain water-soluble azo series initiators and institute It is 1 to state organic amine, at least one benzophenone compound as described above, the weight ratio of water-soluble azo series initiators: 0.1-10:0.1-10, the organic amine are N, N, N ', N '-tetramethylethylenediamine, the water-soluble azo series initiators are 2, Double (2- amidine propanes) dihydrochlorides of 2 '-azo.It can be into one as initiator using the composition in the preferred embodiment Step improves polymerization efficiency.
According to the preferred embodiment of the present invention, the composition is made of mentioned component.Usually, combination of the invention Each ingredient in object independently preserves, and is added separately to when in use in polymerization reaction system.
The method provided by the invention for preparing acrylamide copolymer includes:Under the conditions of photopolymerization reaction, in initiator In the presence of, monomer mixture is made to carry out polymerisation in water, wherein, the initiator is provided by above-mentioned composition, the list Body mixture contains acrylamide.
In the present invention, the dosage of the initiator is preferably the 0.00001-0.5 weight % of the weight of monomer mixture, more Preferably 0.0001-0.3 weight %.
In the present invention, the photopolymerization reaction carries out in water, when the photopolymerization reaction starts, the monomer mixture Weight and the ratio of the total weight of water and monomer mixture there is no particular limitation, can change in a wider scope, it is excellent In the case of choosing, when the photopolymerization reaction starts, weight and the total weight of water and monomer mixture of the monomer mixture Ratio is 0.15-0.4:1, further preferably 0.2-0.3:1.
According to the present invention, the condition of the photopolymerization reaction can be the condition of this field routine.For example, the photopolymerization Reaction carries out under the irradiation of inert atmosphere and ultraviolet light, and the photopolymerization reaction condition can include:The starting of polymerisation Temperature is 0 DEG C to 50 DEG C (preferably 10 DEG C to 40 DEG C), and when the time is 2-12 small (when preferably 4-8 is small), pH value (is preferably for 4-12 5-10).The pH value can be obtained by adding in pH adjusting agent into polymerization system, and the pH adjusting agent can be that this field is normal The various acidic ph modifiers and/or alkaline pH adjusting agent of rule, the alkaline pH adjusting agent can be inorganic base substance, such as At least one of sodium hydroxide, potassium hydroxide and sodium carbonate are preferably sodium hydroxide;The acidic ph modifier can be salt One or more in acid, sulfuric acid and nitric acid.
The inert atmosphere is provided by the gas not reacted with raw material and product, for example, can be conventional by this field Nitrogen or the periodic table of elements in the offer of at least one of group 0 element gas, preferably provided by nitrogen.
The present invention is not particularly limited the irradiation condition of ultraviolet light, as long as photoinitiator can be promoted to trigger polymerization Reaction carries out.Preferably, the power of the ultraviolet light is 10-2000W (more preferably 100-1000W).Here The power of ultraviolet lamp used by power refers to, the present invention are not limited only to using ultraviolet lamp, and those skilled in the art should manage Solution, as long as can generate other donors of the ultraviolet light of the same intensity of 10-2000W ultraviolet lamps such as is applied equally to this Invention.In the case where providing ultraviolet lighting using the ultraviolet lamp of 10-2000W, it is preferable that the light source distance reaction of ultraviolet light The distance 25-150cm of liquid.
In the present invention, the monomer mixture can also contain monomer a.Wherein, the weight ratio of monomer a and acrylamide can Think 0.001-10:1, it is preferably 0.05-3:1.Monomer a can be the list of the various temperature-resistant anti-salt effects that can improve polymer Body.Preferably, monomer a is selected from acrylic acid, 2- acrylamide-2-methylpro panesulfonic acids, N,N-DMAA, N, N- bis- Ethyl acrylamide, vinyl pyrrolidone, diallyldimethylammonium chloride, styrene sulfonic acid, vinyl sulfonic acid, ethylene methacrylic Sulfonic acid, 2- acrylamidos-dodecane sulfonic acid, 2- acrylamidos-tetradecane sulfonic acid, 2- acrylamidos-hexadecane sulfonic acid, Dodecylallyldimethylammonium chloride, dodecyldimethylamine base allyl ammonium chloride, hexadecyldimethyl benzyl ammonium allyl chloride Change at least one of ammonium and solution property, more preferably 2- acrylamido -2- methyl-prop sulphurs Acid.
In the present invention, the method can also include resulting polymers after polymerisation are hydrolyzed and are dried, described Hydrolysis allow the degree of hydrolysis of resulting polymers after polymerisation to be 10-40%.What those skilled in the art could be aware that It is that the process of hydrolysis is included hydrolytic reagent and polymer reaction.By hydrolysis, some acrylamide structural unit is transformed into propylene Hydrochlorate structural unit.
In the present invention, the condition of the hydrolysis is not particularly limited, under preferable case, the condition bag of the hydrolysis It includes:Temperature is 50-110 DEG C, is preferably 70-90 DEG C;When time is 0.5-6 small, when being preferably 1-4 small.
In the present invention, the degree of hydrolysis refers to that the molal quantity of acrylates structural unit accounts for acrylamide of the invention and is total to The percentage of the total mole number of the structural unit of polymers.The degree of hydrolysis is determined by the inventory of hydrolytic reagent of the present invention.
In the present invention, hydrolytic reagent is the various inorganic base substances that can realize above-mentioned purpose commonly used in the art, can With the one or more in sodium hydroxide, potassium hydroxide and sodium carbonate.The dosage of the hydrolytic reagent can be according to acryloyl The degree of hydrolysis of amine copolymer object makes appropriate choice, so that the degree of hydrolysis of acrylamide copolymer meets subject to requirement, it is excellent The dosage of inorganic base substance is selected so that the degree of hydrolysis of acrylamide copolymer is 10-40%.
Those skilled in the art could be aware that, by adjusting the dosage of inorganic base substance, can obtain difference The acrylamide copolymer of degree of hydrolysis.
In the present invention, the molal quantity of the inorganic base substance is equal to the molal quantity of acrylates structural unit.
According to the present invention, for the present invention to drying condition without particular/special requirement, hot-air seasoning may be employed in the drying means, The heated-air drying temperature can be 40-120 DEG C, be preferably 70-90 DEG C;When time is 0.2-4 small, when being preferably 0.5-2 small.
In addition, the present invention method can also include the product being dried to obtain is crushed and sieved, it is described crushing and The condition of screening can reasonably be selected according to the prior art, and details are not described herein.
In a kind of preferred embodiment of the present invention, the preparation method of the acrylamide copolymer includes following step Suddenly:
(1) acrylamide monomer and monomer a are mixed to form comonomer aqueous solution with water, are adjusted with inorganic base substance PH to 5-10, the initial temperature for controlling polymerisation in solution are 0 DEG C to 50 DEG C;
(2) lead to nitrogen to comonomer aqueous solution and carry out deoxygenation, the oxygen content in solution is controlled to be less than 1mg/L;
(3) under the irradiation of logical condition of nitrogen gas and ultraviolet light, initiator system is added in monomer solution, carries out photopolymerization Reaction, obtains polymer gel;
(4) by polymer gel progress, once granulation, hydrolysis, secondary granulation, drying, crushing and screening obtain temperature-resistant anti-salt Acrylamide copolymer product.
The present invention will be described in detail by way of examples below.In following embodiment and comparative example, acrylamide purchase From Bao Mo biochemical industries limited company;2- acrylamide-2-methylpro panesulfonic acids are purchased from Xiamen Changtian Enterprise Co., Ltd.; Double (2- amidine propanes) dihydrochlorides (2,2'- azo diisobutyl amidines dihydrochloride) of 2,2 '-azo are purchased from Aldrich; Benzophenone is purchased from Aldrich;
Water-soluble 1 structure of benzophenone compound is shown in formula I and n=16, synthetic method are:Taking polyethylene glycol (number Average molecular weight 750) 10g is dissolved in toluene 50ml and adds pyridine 1ml and thionyl chloride 6ml, 120 DEG C of reflux 2h, and reaction solution is cold It is filtered to room temperature, filtrate decompression is evaporated off toluene and is cooled to room temperature, and dichloromethane 40ml and 25g Al are added in gained thick liquid2O3 2h filterings are stirred, filtrate decompression steaming vibrating dichloromethane, residue drops in cold anhydrous ether 300ml and white precipitate is precipitated, and filters, Filter cake is dried under reduced pressure, and obtains double chloro polyethylene glycol, and 0.5g sodium hydrides are added in there-necked flask, and 50.0mL toluene adds in 4 gram two Benzophenone, stirring are warming up to 85 DEG C, add in 8 grams of chloro methoxypolyethylene glycols, and for 24 hours, it is molten that 2mol/L hydrochloric acid isopropanols are added dropwise in reaction Liquid adjusts pH value to 4, and most of solvent is removed in rotation, and solid is precipitated, and upper toluene of inclining solution with ether is washed, second is evaporated off repeatedly Ether after vacuum drying, obtains product, which is carried out infrared spectrum characterization, in infrared spectrum, 1650cm-1Place is hexichol Carbonyl absorption peak in ketone, 1598cm-1、1576cm-1And 1507cm-1For phenyl ring skeleton absworption peak, 1110cm-1Broad peak be poly- The characteristic absorption peak of C-O-C groups in ethylene glycol coordinates nuclear-magnetism and mass spectral results, illustrates to have obtained target product;
Water-soluble 2 structure of benzophenone compound is shown in formula I and n=32, synthetic method are:Taking polyethylene glycol (number Average molecular weight 1500) 10g is dissolved in toluene 50ml and adds pyridine 0.5ml and thionyl chloride 3ml, 120 DEG C of reflux 2h, reaction solution It is cooled to room temperature filtering, filtrate decompression is evaporated off toluene and is cooled to room temperature, and dichloromethane 40ml and 25g are added in gained thick liquid Al2O32h filterings are stirred, filtrate decompression steaming vibrating dichloromethane, residue drops in cold anhydrous ether 300ml and white precipitate is precipitated, It filters, filter cake is dried under reduced pressure, and obtains double chloro polyethylene glycol, and 0.5g sodium hydrides are added in there-necked flask, and 50.0mL toluene adds in 2 grams of benzophenone, stirring are warming up to 85 DEG C, add in 8 grams of chloro methoxypolyethylene glycols, and for 24 hours, 2mol/L hydrochloric acid isopropyls are added dropwise in reaction Alcoholic solution adjusts pH value to 4, and most of solvent is removed in rotation, and solid is precipitated, and upper toluene of inclining solution is washed repeatedly with ether, steams Except ether, after vacuum drying, product is obtained, which is subjected to infrared spectrum characterization, in infrared spectrum, 1650cm-1Place is Carbonyl absorption peak in benzophenone, 1600cm-1、1580cm-1And 1505cm-1For phenyl ring skeleton absworption peak, 1108cm-1Broad peak It is the characteristic absorption peak of C-O-C groups in polyethylene glycol, coordinates nuclear-magnetism and mass spectral results, illustrate to have obtained target product;
Commercial product is high molecular weight polyacrylamide (model:Japanese MO4000), molecular weight is 22,000,000;In embodiment The test method of polymer performance is as follows:
1st, the method according to described in GB12005.8-89 measures dissolution time;
2nd, intrinsic viscosity, bonded restorations Mη, according to People's Republic of China's oil and gas industry standard (SY/T5862-2008), using Dilution, intrinsic viscosity=H/C0, molecular weight M is calculated by formulaη=([η]/ 0.000373)1.515
3rd, the apparent viscosity of aqueous solutions of polymers is to be measured at a temperature of 95 DEG C with Brookfield viscosimeters, polymer Solution concentration 1500mg/L, salt water salinity 30000mg/L, divalent calcium and magnesium ion 1000mg/L, shear rate 7.34s-1
4th, polymer is measured according to Shengli Oilfiedld Subsidiary Company Of China Petrochemical Corporation company standard Q/SH1020 1572-2006 Aqueous solution filtration ratio, shear viscosity retention rate and AM residual monomer contents.
Embodiment 1
The benzophenone compound that the present embodiment is used for illustrating using the present invention prepares acrylamide as initiator The method of copolymer.
In polymerization bottle add in 1500 grams of acrylamides, 75 grams of 2- acrylamide-2-methylpro panesulfonic acids, 6300 grams go from Sub- water under stirring, controls 0 DEG C of solution temperature, adds in sodium hydroxide and adjusts pH to 7.Add in 1.575 milligrams of water-soluble hexichol First ketone compounds 1,1.575 milligrams of N, N, N ', N '-tetramethylethylenediamine, 1.575 milligrams of water-soluble azo initiators 2,2 '- Double (2- amidine propanes) dihydrochlorides of azo, lead to high pure nitrogen deoxygenation 0.5h, and oxygen content in solution is controlled to be less than 1mg/L.It carries out Photopolymerization reaction (100W ultraviolet lights), reaction time 5h obtain polymer blob of viscose.Blob of viscose is granulated into 4- by comminutor 6 millimeters of small micelle.Obtained small micelle with the kneading of 171.69 grams of sodium hydroxide grain alkali is contacted, is hydrolyzed at 90 DEG C of temperature 4h, obtains the product of 20-80 mesh after drying and crushing is sieved, and the performance test results are shown in Table 1.
Embodiment 2
The benzophenone compound that the present embodiment is used for illustrating using the present invention prepares acrylamide as initiator The method of copolymer.
In polymerization bottle add in 250 grams of acrylamides, 750 grams of 2- acrylamide-2-methylpro panesulfonic acids, 2333.33 grams Deionized water under stirring, controls 40 DEG C of solution temperature, adds in sodium hydroxide and adjusts pH to 5.Add in 1000 milligrams of water solubilitys Benzophenone compound 1,1000 milligrams of N, N, N ', N '-tetramethylethylenediamine, 1000 milligrams of water-soluble azo initiators 2, Double (2- amidine propanes) dihydrochlorides of 2 '-azo, lead to high pure nitrogen deoxygenation 0.5h, and oxygen content in solution is controlled to be less than 1mg/L.Into Row photopolymerization reaction (1000W ultraviolet lights), reaction time 6h obtain polymer blob of viscose.Blob of viscose is granulated by comminutor Into 4-6 millimeters of small micelle.Obtained small micelle is contacted with 57.08 grams of sodium hydroxide grain alkali kneadings, the water under temperature 70 C 1h is solved, the product of 20-80 mesh is obtained after drying and crushing is sieved, the performance test results are shown in Table 1.
Embodiment 3
The benzophenone compound that the present embodiment is used for illustrating using the present invention prepares acrylamide as initiator The method of copolymer.
In polymerization bottle add in 1000 grams of acrylamides, 500 grams of 2- acrylamide-2-methylpro panesulfonic acids, 4500 grams go Ionized water under stirring, controls 0 DEG C of solution temperature, adds in sodium hydroxide and adjusts pH to 10.Add in 150 milligrams of water solubilitys two Benzophenone class compound 1,150 milligrams of N, N, N ', N '-tetramethylethylenediamine, 150 milligrams of water-soluble azo initiators 2,2 '-idol Double (2- amidine propanes) dihydrochlorides of nitrogen, lead to high pure nitrogen deoxygenation 0.5h, and oxygen content in solution is controlled to be less than 1mg/L.Carry out light Polymerisation (500W ultraviolet lights), reaction time 8h obtain polymer blob of viscose.Blob of viscose is granulated into 4-6 by comminutor The small micelle of millimeter.Obtained small micelle with the kneading of 74.16 grams of sodium hydroxide grain alkali is contacted, 2h is hydrolyzed at 85 DEG C of temperature, The product of 20-80 mesh is obtained after drying and crushing is sieved, the performance test results are shown in Table 1.
Embodiment 4
The benzophenone compound that the present embodiment is used for illustrating using the present invention prepares acrylamide as initiator The method of copolymer.
In polymerization bottle add in 869.56 grams of acrylamides, 60.43 grams of 2- acrylamide-2-methylpro panesulfonic acids, 70 grams Vinyl pyrrolidone and 4000 grams of deionized waters under stirring, control 0 DEG C of solution temperature, add in sodium hydroxide and adjust pH To 10.Add in 50 milligrams of water-soluble benzophenone compounds 1,50 milligrams of N, N, N ', N '-tetramethylethylenediamine, 50 milligrams of water Soluble azo initiator 2, double (2- amidine propanes) dihydrochlorides of 2 '-azo, leads to high pure nitrogen deoxygenation 0.5h, controls oxygen in solution Content is less than 1mg/L.Photopolymerization reaction (100W ultraviolet lights) is carried out, reaction time 8h obtains polymer blob of viscose.By blob of viscose 4-6 millimeters of small micelle is granulated by comminutor.Obtained small micelle is contacted with 74.16 grams of sodium hydroxide grain alkali kneadings, 4h is hydrolyzed at 90 DEG C of temperature, the product of 20-80 mesh is obtained after drying and crushing is sieved, the performance test results are shown in Table 1.
Embodiment 5
The benzophenone compound that the present embodiment is used for illustrating using the present invention prepares acrylamide as initiator The method of copolymer.
In polymerization bottle add in 869.56 grams of acrylamides, 110.43 grams of 2- acrylamide-2-methylpro panesulfonic acids, 20 grams Hexadecyldimethyl benzyl ammonium allyl ammonium chloride and 4000 grams of deionized waters under stirring, control 0 DEG C of solution temperature, add in hydrogen Sodium oxide molybdena adjusts pH to 7.Add in 5 milligrams of water-soluble benzophenone compounds 1,5 milligrams of N, N, N ', N '-tetramethylethylenediamine, 5 milligrams of water-soluble azo initiators 2, double (2- amidine propanes) dihydrochlorides of 2 '-azo, 50 milligrams of sodium hydrogensulfites, 50 milligrams Ammonium persulfate leads to high pure nitrogen deoxygenation 0.5h, and oxygen content in solution is controlled to be less than 1mg/L.Carrying out photopolymerization reaction, (100W is ultraviolet Light irradiates), reaction time 8h obtains polymer blob of viscose.Blob of viscose is granulated by comminutor to 4-6 millimeters of small micelle.Will To small micelle contacted with the kneading of 130.43 grams of sodium hydroxide grain alkali, 4h is hydrolyzed at 90 DEG C of temperature, after drying and crushing is sieved The product of 20-80 mesh is obtained, the performance test results are shown in Table 1.
Embodiment 6
The benzophenone compound that the present embodiment is used for illustrating using the present invention prepares acrylamide as initiator The method of copolymer.
1000 grams of acrylamides of addition, 500 grams of 2- acrylamide-2-methylpro panesulfonic acids and 4500 grams are gone in polymerization bottle Ionized water under stirring, controls 0 DEG C of solution temperature, adds in sodium hydroxide and adjusts pH to 10.Add in 1.5 milligrams of water solubilitys two Benzophenone class compound 1,1.5 milligrams of N, N, N ', N '-tetramethylethylenediamine, 1.5 milligrams of water-soluble azo initiators 2,2 '-idol Double (2- amidine propanes) dihydrochlorides of nitrogen, lead to high pure nitrogen deoxygenation 0.5h, and oxygen content in solution is controlled to be less than 1mg/L.Carry out light Polymerisation (100W ultraviolet lights), reaction time 8h obtain polymer blob of viscose.Blob of viscose is granulated into 4-6 by comminutor The small micelle of millimeter.Obtained small micelle with the kneading of 74.16 grams of sodium hydroxide grain alkali is contacted, is hydrolyzed at 85 DEG C of temperature 1.5h, obtains the product of 20-80 mesh after drying and crushing is sieved, and the performance test results are shown in Table 1.
Embodiment 7
Acrylamide copolymer is prepared in the way of embodiment 1, unlike, without using water-soluble azo initiator 2, Double (2- amidine propanes) dihydrochlorides of 2 '-azo, the performance test results of products obtained therefrom are shown in Table 1.
Embodiment 8
Acrylamide copolymer is prepared in the way of embodiment 1, unlike, use " triethanolamine " replacement " N, N, N ', N '-tetramethylethylenediamine ", the performance test results of products obtained therefrom are shown in Table 1.
Embodiment 9
Acrylamide copolymer is prepared in the way of embodiment 1, unlike, add in 0.315 milligram of water-soluble hexichol First ketone compounds 1,1.575 milligrams of N, N, N ', N '-tetramethylethylenediamine, 0.158 milligram of water-soluble azo initiator 2,2 '- Double (2- amidine propanes) dihydrochlorides of azo obtain the product of 20-80 mesh, performance as initiator after drying and crushing is sieved Test result is shown in Table 1.
Embodiment 10
Acrylamide copolymer is prepared in the way of embodiment 2, unlike, add in 100 milligrams of water-soluble hexichol first Ketone compounds 1,1000 milligrams of N, N, N ', N '-tetramethylethylenediamine, 500 milligrams of water-soluble azo initiators 2,2 '-azo pair (2- amidine propanes) dihydrochloride obtains the product of 20-80 mesh, performance test knot as initiator after drying and crushing is sieved Fruit is shown in Table 1.
Embodiment 11
Acrylamide copolymer is prepared in the way of embodiment 1, unlike, use " water-soluble benzophenone It closes object 2 " and replaces " water-soluble benzophenone compound 1 ", the performance test results of products obtained therefrom are shown in Table 1.
Comparative example 1
Acrylamide copolymer is prepared in the way of embodiment 1, unlike, " benzophenone " is used to replace water-soluble Benzophenone compound 1, the performance test results of products obtained therefrom are shown in Table 1.
Table 1
Can be seen that from the result shown in table 1 can be relatively low using benzophenone compound as initiator component At a temperature of obtain the higher acrylamide copolymer of molecular weight, polymerization efficiency is high.Moreover, modulation of the present invention triggers system and polymerization The species and dosage of monomer can realize that the molecular weight of Heat Resistant and Salt Tolerant Polymer is adjusted between 2800-3500 ten thousand.With commercially available height Molecular weight polyacrylamide is compared, and the branched temperature-tolerant anti-salt polyacrylamide that the present invention obtains has larger viscosity advantage.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above Detail, within the scope of the technical concept of the present invention, a variety of simple variants can be carried out to technical scheme, this A little simple variants all belong to the scope of protection of the present invention.
It is further to note that the specific technical features described in the above specific embodiments, in not lance In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally The thought of invention, it should also be regarded as the disclosure of the present invention.

Claims (14)

1. a kind of have the function of the composition of initiated polymerization, which is characterized in that said composition contains organic amine and at least one The weight ratio of kind Formulas I compound represented, the organic amine and at least one Formulas I compound represented is 1:0.0001- 10000, it is preferably 1:0.002-500,
Wherein, n is the integer of 1-255.
2. composition according to claim 1, wherein, n is the integer of 1-250.
3. composition according to claim 1, wherein, n is the integer of 10-35.
4. according to the composition described in any one in claim 1-3, wherein, the organic amine is compound shown in Formula Il At least one of:
Wherein, R11、R12And R13It is former to be each independently hydrogen, straight chained alkyl, branched alkyl, cycloalkyl, aromatic radical, alkoxy, halogen Son, nitro, sulfydryl, amino, alkylamino radical, aryl amine, alkane hydroxyl or R11、R12And R13In it is both arbitrary be cyclized into diazacyclo, and R11、R12And R13It is asynchronously hydrogen;
Alternatively, R11、R12And R13From independently being hydrogen ,-CH3、-C2H5、-CH2CH2OH、-CH(OH)CH3、-CH2CH2NH2、-CH (NH2)CH3、-C2H4N(CH3)2、-CON(CH3)2Or R11、R12And R13In both arbitrary be cyclized into piperazidine, and R11、R12 And R13It is asynchronously hydrogen.
5. composition according to claim 1, wherein, the organic amine is N, N, N ', N '-tetramethylethylenediamine, N, N- Dimethylethanolamine, N, N '-dimethyl piperazine, N, N, N ', N '-at least one of tetramethylurea and triethanolamine.
6. composition according to claim 1, wherein, the composition also contains water-soluble azo series initiators.
7. composition according to claim 6, wherein, the weight of the organic amine and the water-soluble azo series initiators Than for 1:0.0001-10000 is preferably 1:0.002-500.
8. the composition according to claim 6 or 7, wherein, the water-soluble azo series initiators are selected from 2, and 2 '-azo is double Double (the 2- imidazolines propane) dihydrochlorides of (2- amidine propanes) dihydrochloride, 2,2 '-azo and double (the 4- cyano penta of 4,4 '-azo At least one of acid).
9. composition according to claim 1, wherein, the composition also contains water-soluble azo series initiators, and institute The weight ratio for stating organic amine, at least one Formulas I compound represented and water-soluble azo series initiators is 1:0.1-10:0.1- 10, the organic amine is N, N, N ', N '-tetramethylethylenediamine, the water-soluble azo series initiators are 2, the double (2- of 2 '-azo Amidine propane) dihydrochloride.
A kind of 10. method for preparing acrylamide copolymer, which is characterized in that this method includes:Under the conditions of photopolymerization reaction, In the presence of initiator, monomer mixture is made to carry out polymerisation in water, wherein, the initiator is by claim 1-9 Composition described in any one provides, and the monomer mixture contains acrylamide.
11. according to the method described in claim 10, wherein, the dosage of the initiator is the weight of monomer mixture 0.00001-0.5 weight % are preferably 0.0001-0.3 weight %.
12. according to the method described in claim 10, wherein, when the photopolymerization reaction starts, the weight of the monomer mixture Amount is 0.15-0.4 with the ratio of water and the total weight of monomer mixture:1, it is preferably 0.2-0.3:1.
13. according to the method described in claim 10, wherein, the photopolymerization reaction is under the irradiation of inert atmosphere and ultraviolet light It carries out, the photopolymerization reaction condition includes:The initial temperature of polymerisation is 0 DEG C to 50 DEG C, when the time is 2-12 small, pH value For 4-12.
14. according to the method described in any one in claim 10-13, wherein, the monomer mixture also contains monomer a, The weight ratio of monomer a and acrylamide is 0.001-10:1;Monomer a is selected from acrylic acid, 2- acrylamido -2- methyl-prop sulphurs Acid, N, N- dimethacrylamide, N, N- acrylamides, vinyl pyrrolidone, diallyldimethylammonium chloride, Styrene sulfonic acid, vinyl sulfonic acid, ethylene methacrylic sulfonic acid, 2- acrylamidos-dodecane sulfonic acid, the 2- acrylamidos-tetradecane Sulfonic acid, 2- acrylamidos-hexadecane sulfonic acid, dodecylallyldimethylammonium chloride, dodecyldimethylamine base pi-allyl At least one of ammonium chloride, hexadecyldimethyl benzyl ammonium allyl ammonium chloride and solution property.
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