乙基纤维素与聚苯乙烯共混体系的溶致液晶性研究

Study on lyotropic liquid crystallinity in ethyl cellulose/polystyrene blend system

在EC/PS共混体系中，EC的临界浓度与共混组成无关，都是30％。组分在溶液中发生微观相分离。无论组成比多少，在EC相畴中均能形成滴状织构。观察到有混合组成的第三种相畴，它的存在有助于增加相溶性。在大多数组成比的共混物的EC相中，剪切时均能观察到条带织构。

In EC/PS blend system, the critical concentration of EC was 30%, independing of composition. Microscopic phase isolation of components was observed. Droplet texture was formd in EC domains for all composihon. The third kind of domain with eded compoent was found. Its presence was of benefit to comatibility. In EC phase of blend for most compoihon, banded textUre can be seen after shearing.