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Influence of Liquid Crystallinity and Aggregation on Photo-orientation

 

作者: Michael Rutloh,   Joachim Stumpe,   L. Stachanov,   Sergej Kostromin,   Valery Shibaev,  

 

期刊: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals  （Taylor Available online 2000）
卷期: Volume 352, issue 1  

页码: 149-157

 

ISSN:1058-725X

 

年代: 2000

 

DOI:10.1080/10587250008023172

 

出版商: Taylor & Francis Group

 

关键词: Photo-orientation;optical anisotropy;azobenzene;aggregation;liquid crystalline polyacrylate;photoisomerization;alignment

 

数据来源: Taylor

 

摘要:

The dependence of the Photo-orientation process on the liquid crystallinity and the molecular aggregation is studied. In the case of ordered films the photo-orientation is restricted, but this restriction can be overcome by a photochemical pre-treatment using UV light or by higher power density of the incident Vis light. The optical anisotropy increases with spacer length or the ordering tendency of the polymers.

 

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