Thermoplastic High Strain Multishape Memory Polymer: Side-Chain Polynorbornene with Columnar Liquid Crystalline Phase

2017 ◽  
Vol 29 (12) ◽  
pp. 1605908 ◽  
Author(s):  
Ruiying Zhao ◽  
Tipeng Zhao ◽  
Xuqiang Jiang ◽  
Xin Liu ◽  
Dong Shi ◽  
...  
Keyword(s):  
Crystalline Phase ◽  
Liquid Crystalline ◽  
High Strain ◽  
Liquid Crystalline Phase ◽  
Side Chain

Effects of rigid cores and flexible tails on the phase behaviors of polynorbornene-based mesogen-jacketed liquid crystalline polymers

2015 ◽  
Vol 6 (44) ◽  
pp. 7701-7710 ◽  
Author(s):  
Zhen-Yu Zhang ◽  
Qian Wang ◽  
Ping-Ping Hou ◽  
Zhihao Shen ◽  
Xing-He Fan
Keyword(s):  
Crystalline Phase ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Liquid Crystalline Polymers ◽  
Liquid Crystalline Phase ◽  
Side Chain ◽  
Crystalline Polymers ◽  
Phase Behaviors

MJLCPs with a polynorbornene main chain and different side groups have been precisely synthesized for investigating the effect of side-chain structures on the liquid crystalline phase behaviors.

Biomacrocyclic side-chain liquid crystalline polymers bearing cholesterol mesogens: facile synthesis and topological effect study

2015 ◽  
Vol 6 (38) ◽  
pp. 6885-6893 ◽  
Author(s):  
Feng Zhou ◽  
Yiwen Li ◽  
Ganquan Jiang ◽  
Zhengbiao Zhang ◽  
Yingfeng Tu ◽  
...  
Keyword(s):  
Crystalline Phase ◽  
Liquid Crystalline ◽  
Liquid Crystalline Polymers ◽  
Effect Study ◽  
Liquid Crystalline Phase ◽  
Side Chain ◽  
Facile Synthesis ◽  
Crystalline Polymers ◽  
Topological Effect ◽  
Phase Behaviors

Biomacrocyclic side-chain liquid crystalline polymers bearing cholesterol mesogens with three different length methylene spacers were prepared. Meanwhile, the liquid crystalline phase behaviors were investigated systematically.

Cholesteric Cyclohexane-Containing Side-Chain Liquid-Crystalline Polysiloxanes

2014 ◽  
Vol 809-810 ◽  
pp. 308-312 ◽  
Author(s):  
Ying Li ◽  
Liang Zhang ◽  
Meng Jie Chang
Keyword(s):  
Crystalline Phase ◽  
Liquid Crystalline ◽  
Molecular Structures ◽  
Liquid Crystalline Phase ◽  
Side Chain ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Cholesteric Phase ◽  
H Nmr ◽  
Flexible Spacer

Two new kinds of Cholesteric cyclohexane-Containing Side-Chain Liquid-Crystalline Polysiloxanes (PAand PB) were synthesized via hydrosilylation reaction of polymethyl hydrogen siloxane with cyclohexane mesogenic monomers (MAand MB). The yield of PA, PBwere 71.6%, 82.5% and 81.0%, respectively. The molecular structures of MAand MB, PAand PBwere investigated by Fourier transform infrared spectroscopy (FTIR) and hydrogen-nuclear magnetic resonance spectra (1H-NMR). The corresponding liquid crystalline phase type was also observed by polarizing optical microscopy (POM) and X-ray diffraction (XRD). The liquid crystalline phase behavior and thermal properties of the polymers were analyzed by differential scanning calorimetry (DSC). Results showed that MAand MBexhibited multicolor platelet texture of a blue phase and cholesteric phase, and the Tmand Tiof MAand MBincreased with the increasing flexible chain length. The mesophase temperature range of PAand PBwas broader than that of MAand MB. PAexhibited a rare nematic phase----spherulite texture of polymeric smectic A phase. PBwere of cholesteric and nematic---- cholesteric phase. The Tmand Tiof PAand PBincreased with the increasing flexible spacer groups.

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