Molecular design of super-absorbent polymer gels

Toshikazu Ono, Takahiro Sugimoto, Seiji Shinkai, Kazuki Sada

Research output: Contribution to conferencePaperpeer-review


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
Number of pages2
Publication statusPublished - 2006
Event55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan
Duration: Sept 20 2006Sept 22 2006


Other55th Society of Polymer Science Japan Symposium on Macromolecules

All Science Journal Classification (ASJC) codes

  • General Engineering


Dive into the research topics of 'Molecular design of super-absorbent polymer gels'. Together they form a unique fingerprint.

Cite this