摘要
在高分子共混物相容性研究中，人们长期持有这样一种观点：为了获得均相的高分子共混物，需要在共混组分之间引入特殊相互作用，通过组分之间的相互吸引力克服相分离倾向。相容性理论和实验工作的新进展表明分子间特殊相互作用并不是唯一的、必要的条件，存在着另一类高分子共混相容体系，其中共混组分中至少含有一个或更多的无规共聚物，推动组分形成均相混合物的动力来自共聚物分子内不同单体链段的排斥性相互作用，这一新发现引起了人们的极大兴趣。本文扼要地介绍了这一研究领域的发展状况，包括其理论基础、前提条件和实际应用的一些例子；并结合笔者的部分工作简要地讨论了这一领域中的最新研究结果和发展动态。
Until recently it was commonly hold view that in order to make a miscible polymerblend,a favorable specific interaction had to exist between the polymer components,which could form a attractive association between chamical species contained in the polymer molecules,to overcome thedispersive forces.But increasing amount of experimental work have shown that a homogenous miscible blend can be made by polymers Without the specific interactions. The point is that at least one of the components must be a statistic copolymer. The driving force for the miscibility comes from the intramolecular repulsive interact ion existed within the copolymers.The development of relevant theory in the field,and its application in prediction of miscibility of binary and ternary polymerblends have been briefly discussed in the present paper.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1994年第5期1-6,共6页
Polymer Materials Science & Engineering
基金
成都科技大学青年基金
国家教委留学回国专项基金
关键词
共混
相容性
分子内排斥
高聚物
s:miscibility,intramolecular repulsive interaction,statistic copolymer blend.
