Polysiloxane Side-chain Liquid Crystalline Polymers Prepared by Alkyne Hydrosilylation

Wen Zhao; Bao-ping Lin; Xue-qin Zhang; Ying Sun; Hong Yang

doi:10.1007/s10118-015-1697-9

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Polysiloxane Side-chain Liquid Crystalline Polymers Prepared by Alkyne Hydrosilylation

PAPER | Updated：2021-06-21

- Polysiloxane Side-chain Liquid Crystalline Polymers Prepared by Alkyne Hydrosilylation
- Chinese Journal of Polymer Science Vol. 33, Issue 10, Pages: 1431-1441(2015)
- Affiliations：
  
  School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, Jiangsu Optoelectronic Functional Materials and Engineering Laboratory, Southeast University, Nanjing 211189, China
- Author bio：
  
  **Hong Yang (杨洪), E-mail: yangh@seu.edu.cn
- Funds：
- DOI：10.1007/s10118-015-1697-9
  CLC：
- Received：20 March 2015，
  
  Revised：2015-04-29，
  
  Accepted：02 May 2015，
  
  Published：2015-10
- Accepted：
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Wen Zhao, Bao-ping Lin, Xue-qin Zhang, et al. Polysiloxane Side-chain Liquid Crystalline Polymers Prepared by Alkyne Hydrosilylation[J]. Chinese Journal of Polymer Science, 2015, 33(10): 1431-1441.
DOI：

Wen Zhao, Bao-ping Lin, Xue-qin Zhang, et al. Polysiloxane Side-chain Liquid Crystalline Polymers Prepared by Alkyne Hydrosilylation[J]. Chinese Journal of Polymer Science, 2015, 33(10): 1431-1441. DOI： 10.1007/s10118-015-1697-9.

摘要

Abstract

We describe in this work an alkyne-hydrosilylation approach to synthesize a series of novel polysiloxane sidechain LCPs attaching end-on or side-on mesogenic side groups. Their properties are characterized by NMR

FTIR

gel permeation chromatography

thermogravimetric analysis

differential scanning calorimetry

polarized optical microscopy and small-angle X-ray scattering. These obtained alkenylsilane linked novel LCPs exhibit higher glass transition temperatures and clearing points

and especially display the tendency of forming smectic phases

in strong contrast with the nematic phases of their comparative conventional alkylsilane linked analogues

which manifests more rigid features of the alkenylsilane linkages and their significant influence on the mesomorphic properties.

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