Critical behavior of density fluctuations in gels

Toyoichi Tanaka*, Shin'Ichi Ishiwata, Coe Ishimoto

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

64 Citations (Scopus)


The temperature dependence of the intensity and of the correlation time of laser light scattered by the network density fluctuations in polyacrylamide gels is reported. The density fluctuations show critical behavior at - 17A°C. This behavior is quantitatively explained as a phase transition of a binary mixture of the covalently cross-linked polymer network and the fluid medium.

Original languageEnglish
Pages (from-to)771-774
Number of pages4
JournalPhysical Review Letters
Issue number14
Publication statusPublished - 1977
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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