中文摘要：

嵌段共聚物通过微观相分离形成的各种有序结构在纳米印刷、药物输送、太阳能电池模板制备等领域有着广泛的应用.如何实现这些有序结构的有效调控是大家普遍关心的问题.近期的实验及理论研究表明嵌段长度的多分散性对嵌段共聚物的微观相行为有着不可忽视的影响.本文综述了近年来在AB型两嵌段及ABA型三嵌段共聚物的实验及理论研究中的一些主要进展,重点介绍了基于耗散粒子动力学的模拟研究进展.并对多分散性可能带来潜在重要影响的嵌段共聚物相关体系的未来发展方向进行了展望.

英文摘要：

The formation of novel ordered morphological structures from a microphase separation process enables diverse and expanding applications of block copolymers in areas such as nanolithography, drug delivery,and solar cells. How to manipulate the formation and stability of these structures is a key facter for application in the field of block copolymers. Recent reports from both experiments and theoretical works predicted that the polydispersity in block length distribution has a pronounced effect on many aspects in the phase behavior of block copolymers. Based on the introduction of developments in the experimental and theoretical works,this article gives a mini review especially on the recent developments in simulation works for polydisperse AB diblock and ABA triblock copolymers via the dissipative particle dynamics simulation techniques. An outlook of possible future researches on the issue of the polydispersity effects on more complex block copolymer systems is also given.