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Polymer Dispersed Liquid Crystals Based on Epoxy Networks: Transformations and Phase Separation Phenomena During Polycondensation

 

作者: H.Masood Siddiqi,   M. Dumon,   J.P. Pascault,  

 

期刊: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals  （Taylor Available online 1998）
卷期: Volume 312, issue 1  

页码: 137-155

 

ISSN:1058-725X

 

年代: 1998

 

DOI:10.1080/10587259808042437

 

出版商: Taylor & Francis Group

 

关键词: Polymer dispersed liquid crystals;phase separation;polymerization;Temperature-conversion phase diagrams;gelation;morphology

 

数据来源: Taylor

 

摘要:

A diepoxy-diamine/liquid crystal mixture (50/50 wt%) is studied in the course of the crosslinking step-polymerization at different isothermal reaction temperatures or with a two temperature cure cycle. Depending on the reaction temperature, the systems undergoe phase separation either isothermally, when the reaction temperature is far below the nematic-isotropic (N-I) temperature of the neat LC, or on cooling partially reacted systems when the reaction temperature is above the N-I temperature of the neat LC.

 

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