Macromolecular Research

  • 제13권3호
  • /
  • Pages.180-186
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  • 2005
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  • 1598-5032(pISSN)
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  • 2092-7673(eISSN)
한국고분자학회 (The Polymer Society of Korea)
권호 표지

Photochromic Behavior and Its Stability of a New Bifunctional Dye Composed of Spirobenzopyran and a Cinnamoyl Moiety

  • Shen Kaihua (I State Key Laboratory of Fine Chemicals, Dalian University of Technology, Institute of Natural Sciences, Kyung Hee University) ;
  • Kim Jae Hong (Institute of Natural Sciences, Kyung Hee University) ;
  • Kim Go Woon (Department of Chemistry, Korea University) ;
  • Cho Min Ju (Department of Chemistry, Korea University) ;
  • Lee Sang Kyu (Department of Chemistry, Korea University) ;
  • Choi Dong Hoon (Department of Chemistry, Korea University)
  • 발행 : 2005.06.01
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초록

A novel bifunctional dye composed of spirobenzopyran and a cinnamoyl moiety was prepared and its photochromic behavior under the illumination of monochromatic UV light was investigated. This colorless bifunctional dye exhibits typical photochromism in both the film and in solution, through the structural and geometrical transformation from spirobenzopyran to merocyanine accompanied by a photocrosslinking reaction between the cinnamoyl moieties. Two kinds of photochemical reaction were selectively achieved by irradiation with monochromatic UV light at wavelengths of 275 and 365 nm, respectively. The effect of the selective photochemical reaction on the photochromism of the dye and its decaying behavior was investigated.

키워드

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