Effect of photocrosslinking on photochromism of chalcone-based polymeric materials bearing spiropyran dye

Jae Hong Kim; Si Young Ban; Qing Zhang Zhang; Go Woon Kim; Min Ju Cho; Dong Hoon Choi

doi:10.1080/15421400500366803

Effect of photocrosslinking on photochromism of chalcone-based polymeric materials bearing spiropyran dye

Jae Hong Kim, Si Young Ban, Qing Zhang Zhang, Go Woon Kim, Min Ju Cho, Dong Hoon Choi

Department of Chemistry

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

The epoxy oligomer was prepared to contain spiropyran in the side chain successfully. The rate of ring closure reaction of photochromic dye tethered in the side chain of the epoxy oligomer was controlled by virtue of [2p + 2p] photocycloaddition between the double bonds in the chalcone units and photopolymerization of epoxy group placed in the chain ends, which is expected to control the free volume surrounding photochromic moiety. The kinetic measurement was conducted to prove the improved photostability of the merocyanine chromophore that is colored species of spiropyran. In short, the cationic photopolymerization and photocrosslinking reaction were accompanied under illumination of the identical wavelength UV light.

Original language	English
Pages (from-to)	307/[597]-314/[604]
Journal	Molecular Crystals and Liquid Crystals
Volume	445
DOIs	https://doi.org/10.1080/15421400500366803
Publication status	Published - 2006

Keywords

Cationic photopolymerization
Chalcone
Interpenetrating network
Photochromic behavior
Photocrosslink
Spiropyran

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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10.1080/15421400500366803

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Kim, J. H., Ban, S. Y., Zhang, Q. Z., Kim, G. W., Cho, M. J., & Choi, D. H. (2006). Effect of photocrosslinking on photochromism of chalcone-based polymeric materials bearing spiropyran dye. Molecular Crystals and Liquid Crystals, 445, 307/[597]-314/[604]. https://doi.org/10.1080/15421400500366803

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title = "Effect of photocrosslinking on photochromism of chalcone-based polymeric materials bearing spiropyran dye",

abstract = "The epoxy oligomer was prepared to contain spiropyran in the side chain successfully. The rate of ring closure reaction of photochromic dye tethered in the side chain of the epoxy oligomer was controlled by virtue of [2p + 2p] photocycloaddition between the double bonds in the chalcone units and photopolymerization of epoxy group placed in the chain ends, which is expected to control the free volume surrounding photochromic moiety. The kinetic measurement was conducted to prove the improved photostability of the merocyanine chromophore that is colored species of spiropyran. In short, the cationic photopolymerization and photocrosslinking reaction were accompanied under illumination of the identical wavelength UV light.",

keywords = "Cationic photopolymerization, Chalcone, Interpenetrating network, Photochromic behavior, Photocrosslink, Spiropyran",

author = "Kim, {Jae Hong} and Ban, {Si Young} and Zhang, {Qing Zhang} and Kim, {Go Woon} and Cho, {Min Ju} and Choi, {Dong Hoon}",

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T1 - Effect of photocrosslinking on photochromism of chalcone-based polymeric materials bearing spiropyran dye

AU - Kim, Jae Hong

AU - Ban, Si Young

AU - Zhang, Qing Zhang

AU - Kim, Go Woon

AU - Cho, Min Ju

AU - Choi, Dong Hoon

PY - 2006

Y1 - 2006

N2 - The epoxy oligomer was prepared to contain spiropyran in the side chain successfully. The rate of ring closure reaction of photochromic dye tethered in the side chain of the epoxy oligomer was controlled by virtue of [2p + 2p] photocycloaddition between the double bonds in the chalcone units and photopolymerization of epoxy group placed in the chain ends, which is expected to control the free volume surrounding photochromic moiety. The kinetic measurement was conducted to prove the improved photostability of the merocyanine chromophore that is colored species of spiropyran. In short, the cationic photopolymerization and photocrosslinking reaction were accompanied under illumination of the identical wavelength UV light.

AB - The epoxy oligomer was prepared to contain spiropyran in the side chain successfully. The rate of ring closure reaction of photochromic dye tethered in the side chain of the epoxy oligomer was controlled by virtue of [2p + 2p] photocycloaddition between the double bonds in the chalcone units and photopolymerization of epoxy group placed in the chain ends, which is expected to control the free volume surrounding photochromic moiety. The kinetic measurement was conducted to prove the improved photostability of the merocyanine chromophore that is colored species of spiropyran. In short, the cationic photopolymerization and photocrosslinking reaction were accompanied under illumination of the identical wavelength UV light.

KW - Cationic photopolymerization

KW - Chalcone

KW - Interpenetrating network

KW - Photochromic behavior

KW - Photocrosslink

KW - Spiropyran

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