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JPS6474223A - Amorphous polymer and preparation thereof - Google Patents

Amorphous polymer and preparation thereof

Info

Publication number
JPS6474223A
JPS6474223A JP23094287A JP23094287A JPS6474223A JP S6474223 A JPS6474223 A JP S6474223A JP 23094287 A JP23094287 A JP 23094287A JP 23094287 A JP23094287 A JP 23094287A JP S6474223 A JPS6474223 A JP S6474223A
Authority
JP
Japan
Prior art keywords
amorphous polymer
temp
polymer
glass transition
thermal stability
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP23094287A
Other languages
Japanese (ja)
Other versions
JPH0739488B2 (en
Inventor
Tsuneaki Tanabe
Isaburo Fukawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP23094287A priority Critical patent/JPH0739488B2/en
Publication of JPS6474223A publication Critical patent/JPS6474223A/en
Publication of JPH0739488B2 publication Critical patent/JPH0739488B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Polyethers (AREA)

Abstract

PURPOSE:To obtain a heat-resistant amorphous polymer having a high glass transition temp. and excellent thermal stability and whose polarity and moisture absorption are small, by introducing a dibenzofuran structure into a part of ether linkages of an arom. polyetherketone. CONSTITUTION:An amorphous polymer comprising a repeating unit represented by the formula and whose MW corresponds to a reduced viscosity of 0.2dl/g or more measured in 0.5% (wt./vol.) soln. in N-methylpyrrolidone at 25 deg.C, has a high glass transition temp. and is suitable for various molded items and films used at high temp. Moreover, as the thermal stability is high, this polymer can be molded at high temp. and furthermore, as the polarity and the moisture absorption are low, it can be suitably used in the applications where these characteristics are required. This amorphous polymer can be prepd. by reacting 2,8-bis(4-halogenobenzoyl)-dibenzofuran with alkali metal carbonate or hydrogencarbonate in the presence of a silica compd. catalyst.
JP23094287A 1987-09-17 1987-09-17 Amorphous polymer and method for producing the same Expired - Fee Related JPH0739488B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23094287A JPH0739488B2 (en) 1987-09-17 1987-09-17 Amorphous polymer and method for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23094287A JPH0739488B2 (en) 1987-09-17 1987-09-17 Amorphous polymer and method for producing the same

Publications (2)

Publication Number Publication Date
JPS6474223A true JPS6474223A (en) 1989-03-20
JPH0739488B2 JPH0739488B2 (en) 1995-05-01

Family

ID=16915721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23094287A Expired - Fee Related JPH0739488B2 (en) 1987-09-17 1987-09-17 Amorphous polymer and method for producing the same

Country Status (1)

Country Link
JP (1) JPH0739488B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0390325A2 (en) * 1989-02-27 1990-10-03 Imperial Chemical Industries Plc Polyarylketones
WO1991013929A1 (en) * 1990-03-16 1991-09-19 Asahi Kasei Kogyo Kabushiki Kaisha Noncrystalline polymers and production thereof
EP0454165A2 (en) * 1990-04-27 1991-10-30 Hitachi, Ltd. New polymers, optical transmitting systems and optical members and their use
WO1992007843A1 (en) * 1990-10-26 1992-05-14 Raychem Limited Aryl-ether-sulphone monomers and aryl-ether-ketone-sulphone polymers

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0390325A2 (en) * 1989-02-27 1990-10-03 Imperial Chemical Industries Plc Polyarylketones
WO1991013929A1 (en) * 1990-03-16 1991-09-19 Asahi Kasei Kogyo Kabushiki Kaisha Noncrystalline polymers and production thereof
US5239042A (en) * 1990-03-16 1993-08-24 Asahi Kasei Kogyo Kabushiki Kaisha Amorphous polymers and process for the production thereof
EP0454165A2 (en) * 1990-04-27 1991-10-30 Hitachi, Ltd. New polymers, optical transmitting systems and optical members and their use
WO1992007843A1 (en) * 1990-10-26 1992-05-14 Raychem Limited Aryl-ether-sulphone monomers and aryl-ether-ketone-sulphone polymers
US5338821A (en) * 1990-10-26 1994-08-16 Raychem Limited Aryl-ether-sulphone monomers and aryl-ether-keytone-sulfphone polymers

Also Published As

Publication number Publication date
JPH0739488B2 (en) 1995-05-01

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees