Synthesis and Characterization of a New Bifunctional Dye Containing Spirobenzopyran and Cinnamoyl Moiety

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Synthesis and Characterization of a New Bifunctional Dye Containing Spirobenzopyran and Cinnamoyl Moiety

SHEN Kaihua^a; CHOI Donghoon^b

^a State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, China
^b College of Environment ＆ Applied Chemistry, Institute of Natural Sciences, Kyung Hee University, 1 Seocheon-ri, Kiheung-up, Yongin-shi, Kyungki, 449-701, Korea

Received:1900-01-01 Revised:1900-01-01 Online:2005-02-28 Published:2005-02-28
Contact: SHEN Kaihua

一种新型含肉桂酸酯结构的螺吡喃光致变色染料的合成与性能研究

申凯华^a; 崔东熏^b

^a State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, China
^b College of Environment ＆ Applied Chemistry, Institute of Natural Sciences, Kyung Hee University, 1 Seocheon-ri, Kiheung-up, Yongin-shi, Kyungki, 449-701, Korea

通讯作者: 申凯华

Abstract

Abstract: A novel bifunctional dye containing spirobenzopyran and cinnaznoyl moiety has been prepared and its photochromic behavior following irradiation at different wavelengths of monochrome UV light was investigated.The colourless bifunctional dye in film or solution exhibits unusual photochromism through structural and geometrical transformation from spirobenzopyran to merocyanine accompanying with photocrosslinking reaction in cinnamoyl moieties. Two kinds of photochemical reaction were achieved by irradiation at the different wavelengths of monochrome UV light (275 nm, 365 nm) selectively. The photochromic process of the bifunctional dye was discussed and the dynamic behaviors of the decolorization process were investigated.

Key words: spirobenzopyran, cinnamoyl moiety, photochromism

摘要： A novel bifunctional dye containing spirobenzopyran and cinnaznoyl moiety has been prepared and its photochromic behavior following irradiation at different wavelengths of monochrome UV light was investigated.The colourless bifunctional dye in film or solution exhibits unusual photochromism through structural and geometrical transformation from spirobenzopyran to merocyanine accompanying with photocrosslinking reaction in cinnamoyl moieties. Two kinds of photochemical reaction were achieved by irradiation at the different wavelengths of monochrome UV light (275 nm, 365 nm) selectively. The photochromic process of the bifunctional dye was discussed and the dynamic behaviors of the decolorization process were investigated.

关键词: 染料;有机光化合物;光致交联反应;光化学反应;分析方法;生产工艺

SHEN Kaihua,CHOI Donghoon. Synthesis and Characterization of a New Bifunctional Dye Containing Spirobenzopyran and Cinnamoyl Moiety[J]. .

申凯华,崔东熏. 一种新型含肉桂酸酯结构的螺吡喃光致变色染料的合成与性能研究[J]. CIESC Journal.

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