On the interaction of the morphological structure and the LC behaviour of LC side chain block copolymers
On the interaction of the morphological structure and the LC behaviour of LC side chain block copolymers
复制标题
液晶侧链嵌段共聚物的形态结构与液晶行为的相互作用
DOI：
10.1002/masy.19961020135
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发表时间：
1995
影响因子：
--
通讯作者：
M. Arnold
中科院分区：
文献类型：
--
作者：
H. Fischer;M. Arnold
用DSC、TEM和小角X射线衍射研究了一组液晶侧基嵌段共聚物的形态结构与相行为之间的相互作用。通常，观察到两个嵌段之间的相分离。发现在那些样品的情况下，其中液晶子相是不连续的（球体），仅看到一个非晶相，而在所有的样品中，其中有一个连续的液晶子相，形成的近晶A相的均聚物。另一方面，嵌段共聚物似乎稳定LC相和聚合物性质，一般来说，没有检测到透明温度和玻璃化转变温度与LC嵌段的分子量的依赖性。
The interaction between morphological structure and phase behaviour of a group of LC side group block copolymers have been investigated using DSC, TEM and small angle X-ray diffraction. Generally, phase separation between the two blocks was observed. It was found that in the case of those samples, where the liquid crystalline sub-phase is not continuous (spheres), only a nematic phase is seen, whereas in all samples in which there is a continuous liquid crystalline sub-phase, the smectic A phase of the homopolymer is formed. On the other hand, the block copolymer seems to stabilise the LC-phase and the polymer properties in general, no dependency of the clearing temperatures and of the glass transition temperatures from the molecular weight of the LC blocks has been detected.