Molecular design of super-absorbent polymer gels

Toshikazu Ono, Takahiro Sugimoto, Seiji Shinkai, Kazuki Sada

Research output: Contribution to conferencePaper

Abstract

Ionic polymer gels with the ability to absorb several hundreds times as much water as their dry weights have been used as 'super-absorbent polymers' in wide range of biomedical and agricultural applications. However, in the low dielectric media (ε < 10), common ions form tightly bound ion-pairs or multiplet aggregates, and incompatibilities between the polymer chain and the solvents greatly diminish the swelling power. Here we report development of a new class of ionic polymer gels having lipophilic ion-pairs that consist of a lipophilic tetraphenylborate anion and a quaternary ammonium cation with long alkyl chains. They swelled largely in the less polar solvents such as tetrahydrofuran and chloroform as 'super-absorbent' ionic polymer gels.

Original languageEnglish
Pages4553-4554
Number of pages2
Publication statusPublished - Dec 1 2006
Event55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan
Duration: Sep 20 2006Sep 22 2006

Other

Other55th Society of Polymer Science Japan Symposium on Macromolecules
CountryJapan
CityToyama
Period9/20/069/22/06

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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