Light induced colour change of cholesteric copolymers

Martin Brehmer, Johan Lub, Peter Van Dewitte

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)


We demonstrate an easy method for the colour patterning of cholesteric liquid crystalline copolymers based on photoisomerization of a chiral comonomer. The UV dose determines the reflection colour. If two chiral compounds with opposite twist sense are copolymerized, an inversion of helical twisting sense can be observed during photoisomerization.

Original languageEnglish
Pages (from-to)333-340
Number of pages8
JournalMolecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals
Publication statusPublished - 1 Jan 1999
Externally publishedYes


  • Cholesteric LC Polymers
  • Photoisomerization
  • Pitch Control


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