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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 24, Number 4
BKCSDE 24(4)
April 20, 2003

Title	Stability of Photochromism in New Bifunctional Copolymers Containing Spiropyran and Chalcone Moiety in the Side Chain
Author	Dong Hoon Choi, Si Young Ban, Jae Hong Kim
Keywords	Photochromic, Chalcone, Spiropyran, Copolymer, Photocrosslink
Abstract	We synthesized three copolymers bearing photochromic spiropyran dye and chalcone moiety in the side chain for studying the dynamic properties of their photochromism. They contain methacrylate-spiropyran (MAspiropyran) and methacrylate-chalcone (MA-chalcone) with the different concentration. The photosensitivity of the newly synthesized copolymers was investigated by using UV-Vis absorption spectroscopy. We observed photodimerization and photochromic behavior under UV irradiation at the same time. The effect of photocrosslink on the rate and stability of photochromism in three copolymers was considered in this study. This study might be helpful to design photochromic materials for irreversible optical memory by virtue of photocrosslinking reaction.
Page	441 - 445
Full Text	PDF

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