Powerful low-molecular-weight gelators based on L-valine and L-isoleucine with various terminal groups

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Powerful low-molecular-weight gelators based on l-valine and l-isoleucine with various terminal groups

Masahiro Suzuki,*^a Teruaki Sato,^b Hirofusa Shirai^b and Kenji Hanabusa^a

Author affiliations

* Corresponding authors

^a Graduate School of Science and Technology, Shinshu University, Ueda, Nagano, Japan
E-mail: msuzuki@giptc.shinshu-u.ac.jp
Fax: +81 268 21 5608
Tel: +81 268 21 5415

^b Department of Functional Polymer Science, Faculty of Textile Science and Technology, Shinshu University, Ueda, Nagano, Japan

Abstract

Novel L-valine and L-isoleucine gelators, which have various terminal groups, such as an ester, carboxylic acid and carboxylate as well as different alkyl chain lengths between the terminal group and L-amino acid segment, were synthesized and their organogelation properties were examined in various organic solvents and oils. The organogelation properties significantly depended on the molecular structures of the L-amino acid, the length of the alkyl chains and hydrophilic–hydrophobic balance of the gelators. The FT-IR studies demonstrated that the driving forces for the organogel formation were the hydrogen bonding and van der Waals interactions, and the aggregation modes of the nanofibers depended on the solvents. Furthermore, it was found that these gelators were useful for the selective gelation of oils or fuels from oil/water mixtures.

Download options Please wait...

Article information

DOI: https://doi.org/10.1039/B604847A
Article type: Paper
Submitted: 04 Apr 2006
Accepted: 16 May 2006
First published: 05 Jun 2006

Download Citation

New J. Chem., 2006,30, 1184-1191

Permissions

Request permissions