An Azoester-containing Photoresponsive Linear Liquid Crystal Polymer with Good Mesophase Stability

Shu-Qiang Han; Ying-Ying Chen; Bo Xu; Jia Wei; Yan-Lei Yu

doi:10.1007/s10118-020-2383-0

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An Azoester-containing Photoresponsive Linear Liquid Crystal Polymer with Good Mesophase Stability

ARTICLE | Updated：2020-02-27

- An Azoester-containing Photoresponsive Linear Liquid Crystal Polymer with Good Mesophase Stability
- An Azoester-containing Photoresponsive Linear Liquid Crystal Polymer with Good Mesophase Stability
- Chinese Journal of Polymer Science 2020年38卷第8期页码：806-813
- Affiliations：
  
  Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China
- Author bio：
  
  weijia@fudan.edu.cn
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (Nos. 21734003, 51573029, and 51721002), Natural Science Foundation of Shanghai (No. 17ZR1440100), and Innovation Program of Shanghai Municipal Education Commission (No. 2017-01-07-00-07-E00027).
- DOI：10.1007/s10118-020-2383-0
  中图分类号：
- 收稿：2019-11-01，
  
  修回：2019-12-25，
  
  录用：2019-12-28，
  
  网络首发：2020-02-27，
  
  纸质出版：2020-08
- Accepted：
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Han, S. Q.; Chen, Y. Y.; Xu, B.; Wei, J.; Yu, Y. L. An azoester-containing photoresponsive linear liquid crystal polymer with good mesophase stability. Chinese J. Polym. Sci. 2020, 38, 806–813

Shu-Qiang Han, Ying-Ying Chen, Bo Xu, et al. An Azoester-containing Photoresponsive Linear Liquid Crystal Polymer with Good Mesophase Stability[J]. Chinese Journal of Polymer Science, 2020, 38(8): 806-813.
Han, S. Q.; Chen, Y. Y.; Xu, B.; Wei, J.; Yu, Y. L. An azoester-containing photoresponsive linear liquid crystal polymer with good mesophase stability. Chinese J. Polym. Sci. 2020, 38, 806–813 DOI： 10.1007/s10118-020-2383-0.

Shu-Qiang Han, Ying-Ying Chen, Bo Xu, et al. An Azoester-containing Photoresponsive Linear Liquid Crystal Polymer with Good Mesophase Stability[J]. Chinese Journal of Polymer Science, 2020, 38(8): 806-813. DOI： 10.1007/s10118-020-2383-0.

摘要

Abstract

Photoresponsive linear liquid crystal polymers (LLCPs) are attractive because of the excellent stimuli-responsibility and the good processability. In this study

a new photoresponsive LLCP containing azoester (PC11AE6) with good mesophase stability was synthesized by ring-opening metathesis polymerization. By introducing photoresponsive azoester mesogenic unit

which has high rigidity and a large length-diameter ratio

the resultant polymer possesses a broad mesophase temperature interval (isotropic temperature = 180 °C). A study on mesophase by 2D-wide angle X-ray diffraction indicated that the mesogens were orientated spontaneously into smectic A phase after annealing. The orientated films and fibres exhibited macroscopic

rapid and reversible deformations under light irradiation as a result of the photoisomerization of azoester as confirmed by UV-Vis absorption spectrophotometry. We anticipate that this work provides a strategy for preparing LLCP with a broad mesophase temperature range

which is positive for potential applications.

关键词

Keywords

references

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