Liquid-crystalline ordering in melts of macromolecules with rigid and flexible fragments within the main chain

A theory was proposed for orientation ordering in polymer melts containing rigid and flexible fragments in the main chain. The study was conducted within the framework of a lattice model by a method which, being a generalization of the well-known Flory method, enables induced ordering of flexible fr...

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Bibliographic Details
Published in:Polymer science USSR 1984, Vol.26 (3), p.677-686
Main Authors: Vasilenko, S.V., Khokhlov, A.R., Shibayev, V.P.
Format: Article
Language:English
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Summary:A theory was proposed for orientation ordering in polymer melts containing rigid and flexible fragments in the main chain. The study was conducted within the framework of a lattice model by a method which, being a generalization of the well-known Flory method, enables induced ordering of flexible fragments to be considered in the anisotropic phase. Phase diagrams were plotted and properties of liquid-crystalline transition examined for various flexibility parameters of flexible fragments. New effects were observed and it was shown that consideration of partial ordering of flexible chain segments in the anisotropic phase is necessary for the theoretical study of thermotropic liquid-crystalline polymer systems.
ISSN:0032-3950
1878-268X
DOI:10.1016/0032-3950(84)90407-6