由阴离子聚合而得的具有确定结构的嵌段共聚物的微观相分离问题,多年来人们已从形态学和统计理论方面作了广泛研究。对于嵌段共聚物和相应的均聚物组成的共混体系,实验证明,尽管均聚物链和相应的嵌段在化学上是相同的,但两者的溶解性却是有限的,主要由两者的分子量的相对大小决定。 The problem of microscopic phase separation of well-defined block copolymers derived from anionic polymerization has been extensively studied over the years in terms of morphology and statistical theory. For the blends of block copolymers and the corresponding homopolymers, experiments have shown that although the homopolymer chains and the corresponding blocks are chemically identical, the solubility of the homopolymer chains and the corresponding blocks is limited and mainly consists of The relative size of the two molecular weight decision.