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Citation: ZHANG Chun-Hua, YANG Zheng-Hua, DING Meng-Xian, YU Tao, PENG Zeng-Hui, XUAN Li. Preparation of Light Controllable Films from Photosensitive Cinnamates[J]. Chinese Journal of Applied Chemistry, ;2002, 19(8): 715-718. shu

Preparation of Light Controllable Films from Photosensitive Cinnamates

1.
a State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022;
2.
b Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun

Corresponding author: DING Meng-Xian,
Received Date: 5 December 2001
Available Online: 20 March 2002
Fund Project: 国家自然科学基金重点资助项目(50033010) (50033010)

Light controllable films were prepared by photopolymerization and crosslinking reaction of 4,4'-diphenol dicinnamic ester. The effects of exposure time of polarized UV light on the IR dichroism of film and that of illumination light angle on the pretilt angle of liquid crystal obtained have been investigated. The texture alignment of the liquid crystal has been observed by a polarized microscope. The results showed that the film exhibited a maximum IR dichroism ratio and best uniform liquid crystal alignment under UV light illumination for 15 min.
- diphenol dicinnamic ester,
- photosensitive compound,
- light controllable film,
- IR dichroism,
- liquid crystal,
- texture structure
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