A Structural Investigation of Some Terminally Cyano-Substituted Side Chain Liquid-Crystalline Polysiloxanes
- 1 October 1988
- journal article
- research article
- Published by Taylor & Francis in Liquid Crystals
- Vol. 3 (10) , 1293-1300
- https://doi.org/10.1080/02678298808086611
Abstract
A series of terminally cyano substituted side chain polysiloxanes have been characterized using optical microscopy, D.S.C., and X-ray diffraction. Values for the lamellar spacings, d, of the interdigitated smectic A phases were obtained, and the variations in d with temperature and length of the flexible aliphatic spacer are discussed. The spacing for m = 4, 5, and 6 increased regularly with m whereas the short m = 3 spacer gave an anomalously high value.Keywords
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