Polysiloxane Side-chain Liquid Crystalline Polymers Prepared by Alkyne Hydrosilylation

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

Citation:  Wen Zhao, Bao-ping Lin, Xue-qin Zhang, Ying Sun, Hong Yang. 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 shu

Polysiloxane Side-chain Liquid Crystalline Polymers Prepared by Alkyne Hydrosilylation

    通讯作者: Hong Yang, yanghong_chem@yeah.net
  • 基金项目:

    This work was financially supported by the National Natural Science Foundation of China (No. 21374016).

摘要: 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.

English


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  • 发布日期:  2015-10-05
  • 收稿日期:  2015-03-20
  • 修回日期:  2015-04-29
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