Effect of Flexible Spacer Length on the Rheology of Side-Chain Liquid-Crystalline Polymers

2003 ◽  
Vol 36 (23) ◽  
pp. 8796-8810 ◽  
Author(s):  
Kyung Min Lee ◽  
Chang Dae Han
Keyword(s):  
Liquid Crystalline ◽  
Liquid Crystalline Polymers ◽  
Side Chain ◽  
Spacer Length ◽  
Crystalline Polymers ◽  
Flexible Spacer

Influence of the side-chain structure and molecular weight on the re-entrant behaviors of mesogen-jacketed liquid crystalline polymers

RSC Advances ◽  
2016 ◽  
Vol 6 (82) ◽  
pp. 78516-78527 ◽  
Author(s):  
Zheng Xiang ◽  
Sheng Chen ◽  
Yongbing Luo ◽  
Ping Li ◽  
Hailiang Zhang
Keyword(s):  
Molecular Weight ◽  
Phase Behavior ◽  
Liquid Crystalline ◽  
Liquid Crystalline Polymers ◽  
Terminal Group ◽  
Chain Structure ◽  
Side Chain ◽  
Spacer Length ◽  
Crystalline Polymers

The influence of the alkyl spacer length and the terminal group volume influence on the phase behavior and structure of mesogen-jacketed liquid-crystalline polymers.

Influence of the spacer length on the phase behaviors of mesogen-jacketed liquid crystalline polymers with a bulk side-chain

RSC Advances ◽  
2015 ◽  
Vol 5 (68) ◽  
pp. 54920-54928 ◽  
Author(s):  
Yongbing Luo ◽  
Sheng Chen ◽  
Hailiang Zhang
Keyword(s):  
Phase Behavior ◽  
Liquid Crystalline ◽  
Liquid Crystalline Polymers ◽  
Side Chain ◽  
Side Chains ◽  
Spacer Length ◽  
Crystalline Polymers ◽  
Phase Behaviors

The alkyl spacer length influences the phase behavior and structure of mesogen-jacketed liquid-crystalline polymers with bulk side-chains.

Self-organization of cholesterol-side-chain liquid crystalline polymers by tailoring the main chain structure and flexible spacer length

2019 ◽  
Vol 43 (14) ◽  
pp. 5429-5440 ◽  
Author(s):  
Xiwen Yang ◽  
Shaonan Chen ◽  
Hang Luo ◽  
Haoran Xu ◽  
Sheng Chen
Keyword(s):  
Liquid Crystalline ◽  
Main Chain ◽  
Chain Structure ◽  
Self Organization ◽  
Side Chain ◽  
Liquid Crystal Polymers ◽  
Spacer Length ◽  
Crystalline Polymers ◽  
Smectic A ◽  
Flexible Spacer

Liquid crystal polymers with cholesterol side-chains formed different smectic A phases under the influence of the main-chain structure and flexible spacer length.

ELECTRORHEOLOGICAL EFFECT OF LIQUID CRYSTALLINE POLYMERS

1996 ◽  
Vol 10 (23n24) ◽  
pp. 3191-3200 ◽  
Author(s):  
AKIO INOUE ◽  
SYUNJI MANIWA ◽  
YOICHIROH IDE ◽  
HIROJI ODA
Keyword(s):  
Shear Stress ◽  
Electric Field ◽  
Liquid Crystalline ◽  
Liquid Crystalline Polymers ◽  
Side Chain ◽  
Shear Stresses ◽  
Spacer Length ◽  
Crystalline Polymers ◽  
Electrorheological Effect ◽  
Base Polymer

A series of side chain liquid crystalline polymers (LCPs) containing different spacer length and various terminal structures has been prepared and their electrorheological (ER) effect has been investigated. Although the LCP itself showed small ER effect, a mixture of the LCP with a plain polydimethylsiloxane (PDMS) oil was found to show a large increase in shear stress upon application of an electric field. The shear stresses under DC 2 kV/mm of an electric field were 14 to 4 times those without the application of an electric field over the temperature range of 30 to 160 °C for a 2:1 mixture (by weight) of a LCP containing an oxyethylene spacer and a mesogen based on 4-cyanophenyl benzoate with PDMS. Two mechanisms responsible for the generation of the ER effect was suggested from the investigation using phenyl-substituted PDMS and an analysis by DSC: oriented LC network induction, and phase separation between the LC base polymer and PDMS.

Synthesis and self-organization of azobenzene containing hemiphasmidic side-chain liquid-crystalline polymers with different spacer lengths

2016 ◽  
Vol 7 (2) ◽  
pp. 462-473 ◽  
Author(s):  
Yan-Shuang Xu ◽  
Dong Shi ◽  
Jun Gu ◽  
Zhen Lei ◽  
He-Lou Xie ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystalline ◽  
Liquid Crystalline Polymers ◽  
Self Organization ◽  
Side Chain ◽  
Liquid Crystal Polymers ◽  
Spacer Length ◽  
Crystalline Polymers

Hemiphasmidic side-chain liquid-crystal polymers form different columnar phases depending on the spacer lengthnand temperatureT.

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