Tunable Phase Structure of Side-chain Liquid Crystalline Polymers Enabled by Molecular Engineering of Dual Mesogenic Cores

Wen-Huan Yao ¹Lan-Sheng Liu ²Jie Zhao ²Yan-Xia Wang ²An-Zhi Ma ²Zheng-Rui Ma ²Lan-Ying Zhang ³Ruo-Chen Lan⁴

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作者信息

1. College of Chemistry and Chemical Engineering,Hunan University,Changsha 410082,China;Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education,Key Laboratory of Eco-Environmental Polymer Materials of Gansu Province,College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou 730070,China
2. Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education,Key Laboratory of Eco-environmental Polymer Materials of Gansu Province,College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou 730070,China
3. Department of Materials Science and Engineering,College of Engineering,Peking University,Beijing 100871,China
4. Institute of Advanced Materials & Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education,College of Chemistry and Chemical Engineering,Jiangxi Normal University,Nanchang 330022,China
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Abstract

A series of novel side-chain liquid crystalline(SCLC)copolymers were synthesized by attaching two distinct mesogenic units,namely a chiral cholesteryl-based monomer(M1)and an achiral biphenyl-based monomer(M2),to a poly(3-mercaptopropylmethylsiloxane)(PMMS)back-bone via thiol-ene click chemistry.The influence of side chain composition on the self-assembly behavior and phase structures of these SCLC copolymers was systematically investigated using different instrument.Results indicate that three distinct liquid crystalline phases and four unique molecular configurations were identified within the polymer series,with the emergence of the liquid crystalline phase being a synergistic outcome of the two distinct side chains.This study underscores the critical influence of side chain dimensions,rigidity,and spatial volume on the self-assembly structures and phase characteristics of liquid crystalline polymers,providing valuable insights for the rational design and develop-ment of advanced functional materials with tailored properties.

Key words

Liquid crystalline copolymers/Self-assembly/Phase structure/Chiral molar ratio

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基金项目

National Natural Science Foundation of China(52263033)

National Natural Science Foundation of China(52202081)

China Postdoctoral Science Foundation Funded Project(2021M690954)

Natural Science Foundation of Gansu Province(20JR10RA105)

Natural Science Foundation of Hunan Province(2022JJ30152)

graduate research funding project of Northwest Normal University(2023KYZZ-S157)

Natural Science Foundation of Jiangxi Province,China(20232BAB204030)

出版年

2024

高分子科学(英文版)

中国化学会　中国科学院化学研究所

高分子科学(英文版)

CSTPCD

影响因子：0.721

ISSN：0256-7679

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