Cholesteric liquid crystal inductive asymmetric polymerisation of thiophene monomers

Hiromasa Goto, Fumihiro Togashi, Akitsu Tsujimoto, Reina Ohta, Kohsuke Kawabata

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The thermotropic properties of cholesteric liquid crystal as a polymerisation medium for the synthesis of chiral polymers from achiral monomers were clarified. The chiral reaction medium was successfully employed to synthesise chiral polymers from thiophenes as achiral monomer. The polythiophenes thus prepared exhibit intense circular dichroism imparted by the physical chiral continuum of the reaction field. The chiral aggregate of the present polymers displays structural chirality, with optical activity derived not from the chirality of the individual main-chain but from the chiral architecture. The chiral polymers do not exhibit a thermotropic cholesteric liquid crystal phase but nematic liquid crystal character due to the release of the chiral architecture upon heating.

Original languageEnglish
Pages (from-to)847-856
Number of pages10
JournalLiquid Crystals
Volume35
Issue number7
DOIs
Publication statusPublished - 2008 Jul

Keywords

  • Chiral conjugated polymers
  • Liquid crystal polymers
  • Matrix
  • Molecular imprinting

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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