Fabrication of photochromic hydrogels using an interpenetrating chitosan network

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Title
Fabrication of photochromic hydrogels using an interpenetrating chitosan network
Author(s)
Lee, CW; Seung Hwan Lee; Yang, YK; Geun-Chang Ryu; Kim, HJ
Publication Date
2017-08
Journal
JOURNAL OF APPLIED POLYMER SCIENCE, v.134, no.30, pp.45120 -
Publisher
WILEY
Abstract
The synthesis of a novel interpenetrating chitosan network post-modified with spiropyran (SP) derivatives has been used to develop photochromic hydrogels. We have synthesized succinyl chitosan polymers containing a considerable number of both amines and carboxylic groups. Their intra/ inter molecular amide coupling reactions and postmodification with SP derivatives resulted in the photochromic hydrogels functionalized with chitosan-based interpenetrating polymer network structures. In this hydrogel system, SPs undergo reversible photoresponsive structural switching between a ring-closed colorless SP form and a ring-opened purple merocyanine form under specific light-irradiation conditions. Notably, the photo-mediated wettabilities and color intensities of the hydrogels increase by the increment in the molecular weight of SP-functionalized chitosans. (C) 2017 Wiley Periodicals, Inc
URI
https://pr.ibs.re.kr/handle/8788114/5801
ISSN
0021-8995
Appears in Collections:
Center for Genome Engineering(유전체 교정 연구단) > Journal Papers (저널논문)
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