基于动态共价键的液晶弹性体可逆三维结构加工方法研究进展

张宇白; 吉岩

doi:10.37188/CJLCD.2021-0309

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基于动态共价键的液晶弹性体可逆三维结构加工方法研究进展

前沿应用 | 更新时间：2022-02-28

- 基于动态共价键的液晶弹性体可逆三维结构加工方法研究进展
- Research progress in processing methods of reversible three-dimensional structures of liquid-crystalline elastomers based on dynamic covalent bonds
- 液晶与显示 2022年37卷第2期页码：199-216
- 作者机构：
  
  1.中国石化石油化工科学研究院, 北京 100083
  2.清华大学化学系, 生命有机磷化学及化学生物学教育部重点实验室, 北京 100084
- 作者简介：
  
  [ "张宇白(1993-), 女, 北京人, 博士, 工程师, 2020年于清华大学获得博士学位, 主要从事含动态共价键的高分子、液晶弹性体方面的研究。E-mail: zhangyubai.ripp@sinopec.com" ]
  [ "吉岩(1977-), 女, 广西柳州人, 博士, 副教授, 2006年于北京大学获得博士学位, 主要从事含动态共价键的高分子、液晶弹性体、高分子纳米复合材料等的研究。E-mail: jiyan@tsinghua.edu.cn" ]
- 基金信息：
  
  国家自然科学基金(51722303);国家自然科学基金(21674057)
- DOI：10.37188/CJLCD.2021-0309
  中图分类号： O753.2
- 收稿日期：2021-11-30，
  
  修回日期：2021-12-16，
  
  纸质出版日期：2022-02
- 稿件说明：
移动端阅览
张宇白, 吉岩. 基于动态共价键的液晶弹性体可逆三维结构加工方法研究进展[J]. 液晶与显示, 2022,37(2):199-216.

Yu-bai ZHANG, Yan JI. Research progress in processing methods of reversible three-dimensional structures of liquid-crystalline elastomers based on dynamic covalent bonds[J]. Chinese journal of liquid crystals and displays, 2022, 37(2): 199-216.
张宇白, 吉岩. 基于动态共价键的液晶弹性体可逆三维结构加工方法研究进展[J]. 液晶与显示, 2022,37(2):199-216. DOI： 10.37188/CJLCD.2021-0309.

Yu-bai ZHANG, Yan JI. Research progress in processing methods of reversible three-dimensional structures of liquid-crystalline elastomers based on dynamic covalent bonds[J]. Chinese journal of liquid crystals and displays, 2022, 37(2): 199-216. DOI： 10.37188/CJLCD.2021-0309.

摘要

液晶弹性体是一类在外界刺激（如热、光、电、磁等）下能够产生宏观可逆形变的智能材料。液晶弹性体必须经过取向后才能够展现宏观可逆形变性能。动态共价键在一定的条件下可以发生可逆断裂与再生成，能够改变传统共价交联网络的拓扑结构，因此可被用于液晶弹性体的取向中。液晶弹性体可构筑具有一定形状、且在外界刺激下能够产生可逆形变的智能三维结构，在生物医药、组织工程、航空航天以及柔性机器人等多种领域具有广阔的应用前景。基于动态共价键取向法，对液晶弹性体进行三维空间取向或对液晶弹性体进行组装，有助于提高液晶弹性体可逆三维结构的复杂性，并丰富其形变模式。本文对基于动态共价键的液晶弹性体可逆三维结构的加工方法进行综述，并对该领域的挑战和机遇进行分析。

Abstract

Liquid-crystalline elastomers (LCEs) are a type of smart materials that can produce macroscopic reversible deformation under external stimuli (such as heat

light

electricity

magnetism

etc.). Only LCEs that are aligned can exhibit macroscopic reversible deformation. Dynamic covalent bonds can be reversibly broken and regenerated under certain conditions

which can change the topological structure of traditional covalent cross-linked networks. Introducing dynamic covalent bonds into LCEs enables a new strategy to align the material. Liquid-crystalline elastomer reversible three-dimensional structures have certain three-dimensional shapes and can produce reversible deformation under external stimuli

which can be used in biomedicine

tissue engineering

aerospace

and flexible robots. In order to obtain liquid-crystalline elastomer reversible three-dimensional structures with more complex shapes and multiple deformation modes

the liquid-crystalline elastomers can be three-dimensionally aligned or assembled based on the orientation method of dynamic covalent bonds. This article reviews the processing methods of the liquid-crystalline elastomer reversible three-dimensional structures based on dynamic covalent bonds

and analyzes the challenges and opportunities in this field.

关键词

Keywords

references

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