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Ambient‐Temperature Liquid‐Crystalline Bismethacrylates Based on Cholesterol: Cholesteric and Smectic Thermosets
Author(s) -
Hölter Dirk,
Frey Holger,
Mülhaupt Rolf,
Klee Joachim E.
Publication year - 1998
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/(sici)1521-4095(199808)10:11<864::aid-adma864>3.0.co;2-h
Subject(s) - mesogen , materials science , liquid crystal , liquid crystalline , thermosetting polymer , monomer , chemical engineering , nanotechnology , polymer , organic chemistry , composite material , optoelectronics , chemistry , engineering
Liquid‐crystalline (LC) thermosets make it possible to fix LC order permanently and to produce materials with anisotropic properties of interest in electronics and optics. Branched LC bismethacrylates based on cholesterol as the mesogenic unit are described (see Figure) that exhibit stable mesophases at ambient temperature. A convenient pathway to photocrosslinkable LC monomers from a commercial bismethacrylate is introduced.