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Suppression effect and coupled two-time motion of the photoisomerization in the crosslinking polymer system

Title
Suppression effect and coupled two-time motion of the photoisomerization in the crosslinking polymer system
Authors
Jeong M.-Y.Wu J.W.Jin J.-I.
Ewha Authors
우정원
SCOPUS Author ID
우정원scopus
Issue Date
2001
Journal Title
Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
ISSN
1058-725XJCR Link
Citation
vol. 371, pp. 253 - 256
Indexed
SCOPUS WOS scopus
Abstract
The photoisomerization of the crosslinked and uncrosslinked polymer-pair with azo linkages was studied by the photoinduced birefringence. The photoisomerization of azo chromophores could be controlled by crosslinking process. The inducement of birefringence in crosslinked system indicates that the photoisomerization of chromophore rearranges the orientation not only of the chromophore itself but also of polymer main chain. From the data analysis by biexponential function, it is found that there are two characteristic time scales in the photoisomerization process and they exhibit a coupled relation. © 2001 Taylor and Francis, Inc.
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자연과학대학 > 물리학전공 > Journal papers
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