Synthesis and phase behavior of chiral side-chain liquid-crystalline polysiloxanes containing two mesogenic groups

2002 ◽  
Vol 86 (11) ◽  
pp. 2670-2676 ◽  
Author(s):  
Jian-She Hu ◽  
Bao-Yan Zhang ◽  
Zuo-Jun Liu ◽  
Bao-Ling Zang
Keyword(s):  
Phase Behavior ◽  
Liquid Crystalline ◽  
Side Chain

Phase behavior of side-chain liquid-crystalline polymers containing biphenyl mesogens with different spacer lengths synthesized via miniemulsion polymerization

2016 ◽  
Vol 7 (29) ◽  
pp. 4736-4750 ◽  
Author(s):  
Ehsan Mehravar ◽  
Amaia Iturrospe ◽  
Arantxa Arbe ◽  
José M. Asua ◽  
Jose R. Leiza
Keyword(s):  
Phase Behavior ◽  
Liquid Crystalline ◽  
Molar Mass ◽  
Miniemulsion Polymerization ◽  
Liquid Crystalline Polymers ◽  
Side Chain ◽  
High Molar Mass ◽  
Crystalline Polymers

High molar mass SCLCPs were synthesized by miniemulsion polymerization, and the phase behavior of the polymers was investigated by a combination of DSC, PLM, SAXS and WAXS.

Synthesis and Phase Behavior of Chiral Liquid Crystal Elastomers Containing Cholesteryl Group

2012 ◽  
Vol 554-556 ◽  
pp. 807-810 ◽  
Author(s):  
Ying Gang Jia ◽  
Kun Ming Song ◽  
Bao Yan Zhang
Keyword(s):  
Phase Behavior ◽  
Liquid Crystalline ◽  
Crosslinking Agent ◽  
Side Chain ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Selective Reflection ◽  
Cholesteric Phase ◽  
Liquid Crystal Elastomers ◽  
Cholesteric Liquid Crystalline

The synthesis of new side chain cholesteric liquid crystalline elastomers (ChLCEs) containing the cholesteric monomer M and the flexible non-mesogenic crosslinking agent C, is described. The selective reflection of light for M was characterized with UV/Visible/NIR. The phase behavior and mesomorphism were investigated by differential scanning calorimetry (DSC), polarizing optical microscopy (POM), and X-ray diffraction (XRD). The effect of the content of crosslinking units on the phase behavior and mesomorphism of elastomers P1– P8is discussed. The ChLCEs exhibit elasticity, reversible phase transitions, and cholesteric Grandjean texture. The experimental results demonstrate that the glass transition temperature and isotropic temperature of ChLCEs decrease with increasing the content of crosslinking unit, but the cholesteric phase is not disturbed.

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.

Sign in / Sign up

Export Citation Format

Share Document