Structure and Dilution of Mesogenic Side Chains in Liquid Crystalline Polysiloxanes
- 1 February 1988
- journal article
- structure and-conformation
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics
- Vol. 155 (1) , 399-408
- https://doi.org/10.1080/00268948808070381
Abstract
The structure of the smectic phases in four series of homo- and copolymers based on dimethylsiloxane chains with a definite variation of the concentration of the paired mesogenic side chains has been investigated by means of X-ray methods. The dilution of the mesogenic moiety was achieved by insertion of additional dimethylsiloxane segments. A nearly linear dependence of the layer spacings on the dilution has been found. A model of the structure is proposed which consists of two sublayers one of which contains the irregularly arranged main chain whereas the other one is formed by the side chains.Keywords
This publication has 1 reference indexed in Scilit:
- Synthesis, structure and properties of liquid crystalline polymersPure and Applied Chemistry, 1985