scholarly journals Polymer Blend of Polycarbonate and Thermotropic Liquid Crystalline Polyester with a Long Flexible Spacer in the Main Chain

1989 ◽  
Vol 21 (11) ◽  
pp. 851-861 ◽  
Author(s):  
Boo Young Shin ◽  
In Jae Chung
Keyword(s):  
Polymer Blend ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Flexible Spacer ◽  
Liquid Crystalline Polyester

Polymorphous Structures and Their Phase Relationships in a Main-Chain/Side-Chain Liquid Crystalline Polyester

2002 ◽  
Vol 35 (3) ◽  
pp. 736-745 ◽  
Author(s):  
Jrjeng Ruan ◽  
Jason J. Ge ◽  
Anqiu Zhang ◽  
Jin Shi ◽  
Shy-Yeu Wang ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Main Chain ◽  
Side Chain ◽  
Liquid Crystalline Polyester ◽  
Phase Relationships

Synthesis and Characterization of Thermotropic Main-Chain Liquid Crystalline Polysiloxanes Containing 1,4-butylene bi-p-hydroxybenzoate Mesogens

2011 ◽  
Vol 335-336 ◽  
pp. 891-894
Author(s):  
Shuan Li Du ◽  
Jian Feng Gao ◽  
Zhong Zhan Sun ◽  
Jing Yu Wang
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Decomposition Temperature ◽  
Chemical Structures ◽  
Flexible Spacer ◽  
Structures And Properties ◽  
Clearing Point ◽  
Ft Ir ◽  
Structural Blocks

1,4-butylene bi-p-hydroxybenzoate (BBHB) was synthesized using methyl p-hydroxyl- benzoate and 1,4-butanediol under catalyst and stabilizer conditions; Then, the thermotropic main- chain liquid crystalline polysiloxanes (MCLCPs) with flexible spacer, were synthesized using BBHB and dimethyldiethoxysilane reagents by melting polycondensation. The chemical structures and properties were characterized by FT-IR, polarized optical microscopy (POM) and differential scanning calorimeter (DSC) respectively. It was found that MCLCPs was the type of smectic A liquid crystal, and the liquid crystal temperature ranged from 58°C to 143°C, i.e. its variationrange reached 85°C. In addition, the polysiloxane was used as the flexible main-chain and the flexible chains CH2 was embedded into the rigid structural blocks of liquid crystalline polymers, which not only decreased the melting point below the thermal decomposition temperature, but also made the clearing point and a stable liquid crystal state observed.

Well-Ordered Lamellar Microphase-Separated Morphology of an ABA Triblock Copolymer Containing a Main-Chain Liquid Crystalline Polyester as the Middle Segment

2011 ◽  
Vol 44 (12) ◽  
pp. 4586-4588 ◽  
Author(s):  
Ryohei Ishige ◽  
Toshinari Ishii ◽  
Masatoshi Tokita ◽  
Maito Koga ◽  
Sungmin Kang ◽  
...  
Keyword(s):  
Triblock Copolymer ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Middle Segment ◽  
Aba Triblock Copolymer ◽  
Liquid Crystalline Polyester

Structure of Macroscopic Monodomains and Its Soft Confinements of Chiral Smectic Phases on Crystallization in a Main-Chain Nonracemic Liquid Crystalline Polyester

2007 ◽  
Vol 40 (15) ◽  
pp. 5450-5459 ◽  
Author(s):  
Shi Jin ◽  
Kwang-Un Jeong ◽  
Yingfeng Tu ◽  
Matthew J. Graham ◽  
Jing Wang ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Main Chain ◽  
Smectic Phases ◽  
Liquid Crystalline Polyester

Phase transformations in a chiral main-chain liquid crystalline polyester involving double-twist helical crystals

Polymer ◽  
2000 ◽  
Vol 41 (25) ◽  
pp. 8953-8960 ◽  
Author(s):  
C.Y Li ◽  
J.J Ge ◽  
F Bai ◽  
J.Z Zhang ◽  
B.H Calhoun ◽  
...  
Keyword(s):  
Phase Transformations ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Liquid Crystalline Polyester

Kinetics of phase transitions for fractions of a main-chain liquid-crystalline polyester

Polymer ◽  
1989 ◽  
Vol 30 (2) ◽  
pp. 273-279 ◽  
Author(s):  
Xiaoping Liu ◽  
Shiru Hu ◽  
Lianghe Shi ◽  
Mao Xu ◽  
Qifeng Zhou ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Kinetics Of Phase Transitions ◽  
Kinetics Of ◽  
Liquid Crystalline Polyester
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