影像科学与光化学 ›› 1999, Vol. 17 ›› Issue (2): 155-158.DOI: 10.7517/j.issn.1674-0475.1999.02.155

• 研究简报 • 上一篇    下一篇

方酸菁染料/二芳基碘鎓盐体系引发丙烯酸酯光交联反应

周文慧, 陈东, 林子佩, 何勇, 王尔镒   

  1. 中国科学院感光化学研究所, 北京 100101
  • 收稿日期:1998-05-26 修回日期:1998-07-15 出版日期:1999-05-20 发布日期:1999-05-20
  • 通讯作者: 王尔镒
  • 基金资助:
    国家自然科学基金资助项目(批准号:29504033);中国科学院感光化学所光化学开放实验室资助项目

PHOTOCROSSLINKING OF ACRYLATES INITIATED BY SQUARYLIUM DYE AND DIARYLIODONIUM SALT SYSTEM

ZHOU Wen-hui, CHEN Dong, LIN Zi-pei, HE Yong, WANG Er-jian   

  1. Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P.R.China
  • Received:1998-05-26 Revised:1998-07-15 Online:1999-05-20 Published:1999-05-20

摘要: 近年来随着高新技术的迅猛发展, 激光技术和光化学也随之大量应用到先进材料中, 为适应这种发展需要, 开发感可见光和近红外光的光敏反应体系已成为十分迫切的研究课题[1,2].方酸类染料是一类重要的功能性染料, 广泛地应用于静电复印、太阳能电池和光记录材料[3].方酸染料具有独特的内盐结构, 在四元环母核上引入不同芳杂环结构, 不仅可使光谱响应范围扩展至600~700 nm; 同时它们还具有很强的吸光能力, 克分子消光系数可达 105cm-1·mol-1·L, 因而方酸染料又可成为一类性能优良的可见近红外光光敏剂. 倘使合理选择含给电子基的方酸类染料为光敏剂, 和合适的电子受体相匹配, 可构成感可见近红外光的电子转移光敏反应体系.

关键词: 方酸菁染料, 碘鎓盐, 电子转移反应, 光交联

Abstract: Visible photoinitiation systems composed of squarylium cyanine dye and iodonium salt were studied in this work. Such systems possess a good thermostability and high photochemical activity. Upon irradiation, the electron transfer reaction occurs between excited dye and iodonium, leading to photobleaching of squarylium cyanine dye and cleavage of iodonium to generate active radical. The results obtained indicated that squarylium cyanine dye and iodonium salt combination can serve as a suitable visible photoinitiation system for photocrosslinking of acrylates.

Key words: squarylium cyanine dye, iodonium salt, electron transfer, photocrosslinking