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作 者:Feng Cai Yu-Xuan Chen Wen-Zhong Wang Hai-Feng Yu
出 处:《Chinese Journal of Polymer Science》2021年第4期397-416,I0004,共21页高分子科学(英文版)
基 金:supported by the National Key R&D Program of China(No.2018YFB0703702);the National Natural Science Foundation of China(Nos.51773002,51921002).
摘 要:The great potential of liquid-crystalline block copolymers(LCBCs)containing photoresponsive mesogens toward novel applications in photonics and nanotechnology has been attracting increasing attention,due to the combination of the inherent property of microphase separation of block copolymers and the hierarchically-assembled structures of liquid-crystalline polymers(LCPs).The periodically ordered nanostructures in bulk film of LCBCs can be acquired by supramolecular cooperative motion,derived from the interaction between liquid-crystalline elastic deformation and microphase separation,which are able to improve physical properties of polymer film toward advanced functional applications.Moreover,various micro/nano-patterned structures have been fabricated via light manipulation of photoresponsive LCBCs with good reproducibility and mass production.Thanks to recent developments in synthesis and polymerization techniques,diverse azobenzene-containing LCBCs have been designed,resulting in the creation of a wide variety of novel functions.This review illustrates recent progresses in macroscopic regulation of hierarchical nanostructures in LCBCs towards functional materials.The existing challenges are also discussed,showing perspectives for future studies.
关 键 词:Liquid-crystalline block copolymers Microphase separation Hierarchical nanostructures Functional materials
分 类 号:TB383.1[一般工业技术—材料科学与工程] TQ317[化学工程—高聚物工业]
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