SYNTHESIS AND CHARACTERIZATION OF β-DIKETONE BASED SIDE CHAIN LIQUID CRYSTALLINE POLYSILOXANES

WU Fuzhou; ZHANG Rongben; JIANG Yingyan

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SYNTHESIS AND CHARACTERIZATION OF β-DIKETONE BASED SIDE CHAIN LIQUID CRYSTALLINE POLYSILOXANES

Papers | Updated：2021-06-21

- SYNTHESIS AND CHARACTERIZATION OF β-DIKETONE BASED SIDE CHAIN LIQUID CRYSTALLINE POLYSILOXANES
- Vol. 8, Issue 2, Pages: 133-141(1990)
- Affiliations：
  
  1. Institute of Chemistry, Academia Sinica,Beijing,100080
  2. Academia Sinica
  3. Beijing 100080
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：20 June 1990
- Accepted：
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[1]吴富洲,张榕本,江英彦.SYNTHESIS AND CHARACTERIZATION OF β-DIKETONE BASED SIDE CHAIN LIQUID CRYSTALLINE POLYSILOXANES[J].Chinese Journal of Polymer Science,1990,{4}(02):133-141.

WU Fuzhou, ZHANG Rongben, JIANG Yingyan. SYNTHESIS AND CHARACTERIZATION OF β-DIKETONE BASED SIDE CHAIN LIQUID CRYSTALLINE POLYSILOXANES[J]. 1990, 8(2): 133-141.
[1]吴富洲,张榕本,江英彦.SYNTHESIS AND CHARACTERIZATION OF β-DIKETONE BASED SIDE CHAIN LIQUID CRYSTALLINE POLYSILOXANES[J].Chinese Journal of Polymer Science,1990,{4}(02):133-141. DOI：

WU Fuzhou, ZHANG Rongben, JIANG Yingyan. SYNTHESIS AND CHARACTERIZATION OF β-DIKETONE BASED SIDE CHAIN LIQUID CRYSTALLINE POLYSILOXANES[J]. 1990, 8(2): 133-141. DOI：

摘要

<正> A new type of β-diketone based side chain liquid crystalline polysiloxanes （DKLCP） with different length of flexible spacers and end groups have been synthesized by hydrosilation reaction. This is liquid crystal polymers （LCP） using coordinating β-diketone ligand as mesogens. The phase behaviour of DKLCP polymers was studied by differential scanning calorimetry and polarizing microscopy. X-ray diffraction investigations demonstrated that the polysiloxanes with sufficiently long flexible spacers were smectic liquid crystal polymers

while those with much shorter spacers were nematic ones.

Abstract

A new type of β-diketone based side chain liquid crystalline polysiloxanes （DKLCP） with different length of flexible spacers and end groups have been synthesized by hydrosilation reaction. This is liquid crystal polymers （LCP） using coordinating β-diketone ligand as mesogens. The phase behaviour of DKLCP polymers was studied by differential scanning calorimetry and polarizing microscopy. X-ray diffraction investigations demonstrated that the polysiloxanes with sufficiently long flexible spacers were smectic liquid crystal polymers

while those with much shorter spacers were nematic ones.

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