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

IF 4.1 2区化学 Q2 POLYMER SCIENCE Chinese Journal of Polymer Science Pub Date : 2024-08-20 DOI:10.1007/s10118-024-3167-8

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

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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) backbone 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 development of advanced functional materials with tailored properties.

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通过双介导核分子工程实现侧链液晶聚合物的可调相结构

通过硫醇-烯点击化学将两种不同的介原单元，即手性胆固醇基单体（M1）和非手性联苯基单体（M2）连接到聚（3-巯丙基甲基硅氧烷）（PMMS）骨架上，合成了一系列新型侧链液晶（SCLC）共聚物。我们使用不同的仪器系统地研究了侧链组成对这些 SCLC 共聚物的自组装行为和相结构的影响。结果表明，在聚合物系列中发现了三种不同的液晶相和四种独特的分子构型，液晶相的出现是两种不同侧链协同作用的结果。这项研究强调了侧链尺寸、刚性和空间体积对液晶聚合物自组装结构和相特性的重要影响，为合理设计和开发具有定制特性的先进功能材料提供了宝贵的见解。

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来源期刊

Chinese Journal of Polymer Science 化学-高分子科学

CiteScore

7.10

自引率

11.60%

发文量

218

审稿时长

6.0 months

期刊介绍： Chinese Journal of Polymer Science (CJPS) is a monthly journal published in English and sponsored by the Chinese Chemical Society and the Institute of Chemistry, Chinese Academy of Sciences. CJPS is edited by a distinguished Editorial Board headed by Professor Qi-Feng Zhou and supported by an International Advisory Board in which many famous active polymer scientists all over the world are included. The journal was first published in 1983 under the title Polymer Communications and has the current name since 1985. CJPS is a peer-reviewed journal dedicated to the timely publication of original research ideas and results in the field of polymer science. The issues may carry regular papers, rapid communications and notes as well as feature articles. As a leading polymer journal in China published in English, CJPS reflects the new achievements obtained in various laboratories of China, CJPS also includes papers submitted by scientists of different countries and regions outside of China, reflecting the international nature of the journal.