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.
作者
宛新华
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)
出处
《功能高分子学报》
CAS
CSCD
北大核心
2020年第3期207-209,共3页
Journal of Functional Polymers
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
polymerization-induced chiral self-assembly
supramolecular chirality
azobenzene liquid-crystalline polymer
helical nano fiber
