中文摘要：

聚合物环带球晶作为一类特殊的球晶结构，其结晶机理一直倍受关注。经过几十年的研究，对于环带球晶形成机理的认识在不断深入，但是仍有许多问题尚未解决。本文总结了常见聚合物环带球晶的分类，综述了国内外在聚合物环带球晶片晶组织形式和片晶扭转机理研究上的主要进展，力图展示聚合物环带球晶研究的整体概况。根据前期研究结果，总结了手性聚羟基脂肪酸酯环带球晶的形成机理。最后，提出了目前环带球晶研究中尚未解决的一些问题。

英文摘要：

Polymer banded spherulites have attracted intensive interest due to their intricate organization in the past half century. Understanding on banding mechanism of polymer spherulites is becoming deeper and deeper, thanks to the great efforts of the researchers. However, there are still some questions unsolved. In this article, an overview of the formation mechanism of polymer banded spherulites is outlined. We will focus on organization of lamellar crystals in the banded spherulites and the drive force for lamellar twisting. Banding mechanism of ehiral polyhydroxyalkanoates is summarized. Finally, the remained questions are put forward for future research.