Relationship of polymer molecular weight and cure temperature in photopolymerization-induced phase separation of liquid crystal and polymer fiber networks

Takeshi Murashige, Hideo Fujikake, Seiichiro Ikehata, Fumio Sato

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We studied the dependence of polymer molecular weight on cure temperature in the photopolymerization-induced phase separation of liquid crystal and polymer fiber networks, using gel permeation chromatography. As the experimental result, it was found for the first time that the molecular weight of the polymer, which is segregated and aggregated in the solution of monomer and the liquid crystal, increases with decreasing the temperature. We considered that the spatial concentration of growing polymer density, which is induced by the phase separation with the temperature decrease, accelerates the chemical bonding of polymer molecules.

Original languageEnglish
Pages (from-to)L1152-L1154
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume41
Issue number10 B
Publication statusPublished - 2002 Oct 15
Externally publishedYes

Keywords

  • Liquid crystal
  • Molecular weight
  • Photopolymerization-induced phase separation

ASJC Scopus subject areas

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

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