原位可控构筑多层次超分子手性聚合物组装体  

In Situ Controlled Construction of Hierarchical Supramolecular Chiral Polymer Assembly

作　　者：宛新华[1] WAN Xinhua(Beijing National Laboratory for Molecular Sciences,Key Laboratory of Polymer Chemistry and Physics of Ministry of Education,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China)

机构地区：[1]北京大学化学与分子工程学院,北京分子科学国家研究中心,高分子化学与物理教育部重点实验室,北京100871

出　　处：《功能高分子学报》2020年第3期207-209,共3页Journal of Functional Polymers

摘　　要：多层次超分子手性结构的高效可控构筑是手性材料研究和应用领域的一个关键问题,面临诸多挑战。近来,苏州大学张伟教授团队基于偶氮苯聚合物的疏溶剂性和液晶性提出了一种原位可控制备多层次超分子手性聚合物组装体的策略-聚合诱导手性自组装,在偶氮苯单体聚合的同时实现多层次和不同尺度的超分子自组装和手性传递。该策略克服了传统高分子溶液自组装繁琐耗时的缺点,易于结构调控和规模制备。The efficient and controlled construction of hierarchical supramolecular chiral structures has always been the focus and difficulties in the research and application of chiral materials with plenty of challenges.Recently,Prof.Wei Zhang and co-workers at Soochow University proposed polymerization-induced chiral self-assembly(PICSA)concept based on the hydrophobic and liquid-crystalline azobenzene polymer for the first time,by which hierarchical supramolecular chiral polymer assemblies were constructed in a controlled manner.During PICSA process,the internal azobenzene liquidcrystalline ordering,supramolecular interaction and self-assembly of the amphiphilic block copolymers occurred simultaneously,providing an efficient strategy for controlled construction of hierarchical supramolecular chiral polymer assemblies.The molecular-level chirality in polymer systems will be deduced into a higher-level supramolecular chirality and even micro-helix in situ by PICSA strategy.The strategy overcomes the shortcomings of tedious and time-consuming of traditional supramolecular assembly in solution systems.

关 键 词：聚合诱导手性自组装 超分子手性 偶氮苯液晶聚合物 螺旋纳米纤维 

分 类 号：O641.3[理学—物理化学]