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.
|Number of pages||8|
|Journal||Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals|
|Publication status||Published - 1 Jan 1999|
- Cholesteric LC Polymers
- Pitch Control