Photo-controlled diffusion in reacting liquid crystals : a new tool for the creation of complex molecular architectures

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Abstract

Diffusion enforced photo-assembling during polymerization of a chiral­nematic monomer blend yields a cholesteric network in which the helical pitch gradually changes over the cross-section of the film. The polarization selective reflection band of cholesterics can be made much wider than those of single pitch materials and may expand over the whole visible wavelength. The paper discusses the photo-controlled diffusion process in thin films, the important process parameters and some ofthe properties of the molecular architectures obtained.
Original languageEnglish
Pages (from-to)33-42
JournalMacromolecular Symposia
Volume117
DOIs
Publication statusPublished - 1997

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