Change of temperature and elastic stiffness during dehydration process of polyacrylamide gel

Takeo Masuike, Seiji Taki, Kazuhiro Hara, Shoichi Kai

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Temporal changes of the weight, volume, temperature and elastic properties during the dehydration process of a polyacrylamide (PAAm) gel were studied. Both the weight and the volume monotonically decreased in the early stage of the process and then tended to saturate in the late stage. At the crossover point between these two dependencies, the temperature of the gel and its elastic stiffness showed anomalies, which indicated similar aspects to the glass transition often observed in non-crystalline polymers. The water content in gels is an important factor affecting the transition.

Original languageEnglish
Pages (from-to)4997-5000
Number of pages4
JournalJapanese Journal of Applied Physics
Volume34
Issue number9R
DOIs
Publication statusPublished - Sep 1995

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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