影像科学与光化学 ›› 1994, Vol. 12 ›› Issue (2): 110-114.DOI: 10.7517/j.issn.1674-0475.1994.02.110

• 研究论文 • 上一篇    下一篇

(4-N,N-二甲氨基)-苯基-N-苯基硝酮在高聚物薄膜中光化学反应特性的研究

刁力, 贺光潜, 吴世康   

  1. 中国科学院感光化学研究所 北京 100101
  • 收稿日期:1993-03-10 修回日期:1993-06-23 出版日期:1994-05-20 发布日期:1994-05-20
  • 通讯作者: 吴世康

A STUDY ON THE PHOTOCHEMICAL REACTION OF(4-N,N-DIMETHYL-AMINE)-PHENYL-N-PHENYL NITRONE IN POLYMER FILM

DIAO Li, HE GUANG-QIAN, WU SHI-KANG   

  1. Institute of Photographic Chemistry, Academia Sinica, Beijing 100101, P. R. China
  • Received:1993-03-10 Revised:1993-06-23 Online:1994-05-20 Published:1994-05-20

摘要: 本工作测定了(4-N,N-二甲氨基)-苯基-N-苯基硝酮(DMAPN)在不同介质中光照后折射率的变化,发现其折射卒随光照时间的增长而明显降低。工作研究了DMAPN在高分子薄膜内的光化学反应与高聚物分子量的关系,在分子量较低的区域,高分子介质对小分子反应的影响是不规则的,而在高分子量区,则随着分子量的增大,反应速率下降,对所得的结果进行了初步讨论。

关键词: 硝酮, 吡唑啉, 光环化反应, 折射率

Abstract: Photocyclization of(4-N,N-dimethylamine)-Phenyl-N-phenyl nitrone(DMAPN)un-der UV-irradiation will cause change in refrative index in various environments. Therefractive index of the title compound in different matrix decreases along with the increaseof the irradiation time. The photochemical reaction of DMAPN in polymer film is affectedby the molecular weight of the polynier.The result indicates that the photochemical re- action of this compound does not depend upon the molecular weight of polymer in lowmolecular weight region,but decreases with the increase of the molecular weight of polymerin high molecular weight region.

Key words: nitrone, pyrazoline, photocyclization, refractive index