Searching for photochromic liquid crystals Spironaphthoxazine substituted with a mesogenic group
- 1 May 1990
- journal article
- research article
- Published by Taylor & Francis in Liquid Crystals
- Vol. 7 (5) , 643-655
- https://doi.org/10.1080/02678299008036748
Abstract
A number of photochromic spiropyrans and spirooxazines containing mesogenic groups were synthesized. Only one of them, spiro-indoline-naphthoxazine with mesogenic substituent, 4-(4-heptylbenzoyloxy)benzoyloxy in 5-position, revealed mesomorphic properties. Its phase behaviour, photochromism and alignment in the electric field was investigated. A structure of the mesophase is discussed.Keywords
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