Direct observation of internal structures in poly(N-isopropylacrylamide) chemical gels

Yoshitsugu Hirokawa, Hiroshi Jinnai, Yukihiro Nishikawa, Takuya Okamoto, Takeji Hashimoto

Research output: Contribution to journalArticlepeer-review

87 Citations (Scopus)

Abstract

Internal structures of translucent poly(AT-isopropylacrylamide) gel were for the first time observed by laser scanning confocal microscopy (LSCM). The observed image reflected the mesoscopic internal structures in the gel due to the "fixed concentration fluctuations" of network polymers as described in the text. Three-dimensional internal structures in the gel constructed from a series of the cross section images taken by the LSCM revealed that the gel had a bicontinuous domain structure consisting of regions dense and sparse in polymer networks.

Original languageEnglish
Pages (from-to)7093-7099
Number of pages7
JournalMacromolecules
Volume32
Issue number21
Publication statusPublished - 1999 Oct 19
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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