影像科学与光化学 ›› 1990, Vol. 8 ›› Issue (3): 177-181.DOI: 10.7517/j.issn.1674-0475.1990.03.177

• 研究论文 • 上一篇    下一篇

脂二胺在颜料分散体中光化学反应活泼自由基的ESR研究

陈次平1, 任新民1, 张永康2, 陆道惠2   

  1. 1. 中国科学院感光化学研究所, 北京 100101;
    2. 中国科学院化学研究所, 北京 100080
  • 收稿日期:1988-11-03 修回日期:1989-06-20 出版日期:1990-08-20 发布日期:1990-08-20
  • 通讯作者: 陈次平
  • 基金资助:
    北京分子动态及稳态结构化学国家实验室资助课题

ESR STUDY ON THE FREE RADICALS IN THE PHOTOCHEMICAL REACTION BETWEEN ALKYL DIAMINES AND PIGMENT DISPERSIONS

CHEN CI-PING1, REN XIN-MIN1, ZHANG YONG-KANG2, LU DAO-HUI2   

  1. 1. Institute of Photographic Chemistry, Acadcmia Siniea, Beijing 100101, P. R. China;
    2. Institute of Chemistry, Acadcmia Siniea, Beijing 100080 P. R. China
  • Received:1988-11-03 Revised:1989-06-20 Online:1990-08-20 Published:1990-08-20

摘要: 用自旋捕捉技术与ESR相结合的方法研究了脂二胺在ZnO、TiO2的庚烷或苯的分散体系中光诱导的电子转移过程。观察到DMPO与氮中心自由基加合物的ESR信号,表明捕捉到的自由基是脂二胺与光生空穴作用而产生的胺的阳离子自由基。

关键词: 脂二胺, 颜料分散体, 光反应, 顺磁共振, 自由基

Abstract: Photoinduced electron transfer reactions between alkyl diamines and ZnO,TiO2 dispersions in heptane or benzene solution were studied with the combination of ESR spectroscopy and spin trapping technique.The signal of a nitrogen-centered radical adduct of DMPO was observed.The results obtained indicate that the trapped radical is a cation radical of diamine produced from diamine and photogenerated hole.

Key words: alkyl diamines, pigment dispersions, photoreaction, ESR, free radicals