Supramolecular crosslinked linear poly (trimethylene iminium trifluorosulfonimide) polymer gels sensitive to light and thermal stimuli

Takayuki Suzuki, Seiji Shinkai, Kazuki Sada

Research output: Contribution to journalArticle

98 Citations (Scopus)

Abstract

The synthesis of supramolecular crosslinked linear poly(trimethylene iminium trifluorosulfonimide) polymer gels, which are sensitive to light and thermal stimuli, was analyzed. It is found that the reversible sol-gel phase transition in the gels is based on the supramolecular crosslinking of polymers by bifunctional crosslinkers. The strategy is based on the formation of selective supramolecular attachments between multiple hydrogen bond donors on the polymer and two hydrogen bond acceptors in the crosslinkers. Upon irradiating the composite gels with UV light, their viscosity changes significantly. Supramolecular crosslinking of polymers by low-molecular-weight crosslinkers is a useful strategy for designing and constructing thermally reversible. The results show that by appropriate molecular design of the crosslinker, it is possible to obtain some new reversible gels.

Original languageEnglish
Pages (from-to)1043-1046
Number of pages4
JournalAdvanced Materials
Volume18
Issue number8
DOIs
Publication statusPublished - Apr 18 2006

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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