共聚物
材料科学
手性(物理)
千分尺
螺旋(铁路)
对映体药物
自组装
制作
纳米技术
退火(玻璃)
化学工程
化学物理
光学
有机化学
化学
复合材料
聚合物
对映选择合成
手征对称破缺
物理
病理
夸克
医学
催化作用
数学分析
工程类
数学
Nambu–Jona Lasinio模型
替代医学
量子力学
作者
Jianan Yuan,Xuemin Lü,Qingxiang Li,Zhiguo Lü,Qinghua Lu
标识
DOI:10.1002/anie.202101102
摘要
Abstract The spiral is a fundamental structure in nature and spiral structures with controllable handedness are of increasing interest in the design of new chiroptical materials. In this study, micrometer‐scale spiral structures with reversible chirality were fabricated based on the assembly of a liquid crystalline block copolymer film assisted by enantiopure tartaric acid. Mechanistic insight revealed that the formation of the spiral structures was closely related to the liquid crystalline properties of the major phase of block copolymer under the action of chiral tartaric acid. The chiral spiral structures with controllable handedness were easily erased under ultraviolet light irradiation and restored via thermal annealing. This facile thermal treatment method provides guidance for fabrication of chiral micrometer‐scale spiral structures with adjustable chiral properties.
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