Amphoteric poly(vinyl alcohol) gel as a force generator: Observation of microporous gel formation with cryo-sem

Makoto Suzuki, Tetsuya Tateishi, Masahiko Matsuzawa, Masakatsu Saito

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Amphoteric PVA hydrogels were made from mixed aqueous solutions of poly(acrylic acid), poly(allylamine) hydrochloride and poly(vinyl alcohol) by repetitive freezing and thawing. The hydrogen bond induced gelation produced an elastic and tough microporous hydrogel which generated tension as high as 0.3MPa corresponding to the solvent exchange from water to acetone. In this paper we show the microscopic structure of hydrogels determined by means of cryo-SEM technique and X-ray analysis.

Original languageEnglish
Pages (from-to)55-66
Number of pages12
JournalMacromolecular Symposia
Volume109
Publication statusPublished - 1996 May
Externally publishedYes

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics

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