Synthesis and Structure-Property Relationships of Processable Liquid Crystalline Polymers with Arylenevinylene Segments in the Main Chain for Light-Emitting Applications

1995 ◽  
Vol 28 (25) ◽  
pp. 8676-8682 ◽  
Author(s):  
J. Oberski ◽  
R. Festag ◽  
C. Schmidt ◽  
G. Luessem ◽  
J. H. Wendorff ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Main Chain ◽  
Liquid Crystalline Polymers ◽  
Structure Property ◽  
Light Emitting ◽  
Crystalline Polymers ◽  
Structure Property Relationships

Structure-property relations of liquid crystalline polymers

1987 ◽  
Vol 45 ◽  
pp. 460-463
Author(s):  
Linda C. Sawyer
Keyword(s):  
Solid State ◽  
Liquid Crystalline ◽  
Structural Model ◽  
Crystalline Polymer ◽  
Liquid Crystalline Polymers ◽  
Mechanical Anisotropy ◽  
Structure Property ◽  
Preparation Methods ◽  
Crystalline Polymers ◽  
Extended Chain

Recent liquid crystalline polymer (LCP) research has sought to define structure-property relationships of these complex new materials. The two major types of LCPs, thermotropic and lyotropic LCPs, both exhibit effects of process history on the microstructure frozen into the solid state. The high mechanical anisotropy of the molecules favors formation of complex structures. Microscopy has been used to develop an understanding of these microstructures and to describe them in a fundamental structural model. Preparation methods used include microtomy, etching, fracture and sonication for study by optical and electron microscopy techniques, which have been described for polymers. The model accounts for the macrostructures and microstructures observed in highly oriented fibers and films.Rod-like liquid crystalline polymers produce oriented materials because they have extended chain structures in the solid state. These polymers have found application as high modulus fibers and films with unique properties due to the formation of ordered solutions (lyotropic) or melts (thermotropic) which transform easily into highly oriented, extended chain structures in the solid state.

scholarly journals Main-chain liquid crystalline polymers bearing periodically grafted folding elements

2021 ◽  
Vol 12 (7) ◽  
pp. 1050-1059
Author(s):  
Gabriel Ogunsola Orodepo ◽  
E. Bhoje Gowd ◽  
S. Ramakrishnan
Keyword(s):  
Liquid Crystalline ◽  
Main Chain ◽  
Liquid Crystalline Polymers ◽  
Crystalline Polymers ◽  
Interesting Alternative

Inclusion of non-mesogenic pendant segments, such as alkyl, PEG and fluoroalkyl, at periodic intervals along the backbone of main-chain LCPs, that contain flexible spacers, provides an interesting alternative to control the mesophase structure and the layer periodicity.

Collective fluctuation in chiral smectic phases of main‐chain liquid crystalline polymers

2007 ◽  
Vol 34 (3) ◽  
pp. 305-310 ◽  
Author(s):  
Kazuyuki Hiraoka ◽  
Takuhei Nose ◽  
Yoshiko Uematsu ◽  
Masatoshi Tokita ◽  
Junji Watanabe
Keyword(s):  
Liquid Crystalline ◽  
Main Chain ◽  
Liquid Crystalline Polymers ◽  
Crystalline Polymers ◽  
Smectic Phases
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