ISSN:
1436-2449
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Summary The influence of the polymer backbone flexibility on the phase transition temperatures of side chain liquid crystalline polymethacrylate, polyacrylate, polymethylsiloxane, and polyphosphazene containing 6-[4-(4-methoxy- β- methylstyryl)phenoxy]hexyl side groups is discussed. Flexible backbones enhance the decoupling of the motions of the side chain and main chain and therefore, increase the rate of side-chain crystallization. Subsequently, the kinetically controlled crystallization process may transform the thermodynamically controlled mesomorphic phases from enantiotropic into monotropic. However, the highest degree of order in the mesophase is exhibited by the polymers based on the most rigid polymer backbone.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00255212
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