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

doi:10.7517/j.issn.1674-0475.1994.02.110

Imaging Science and Photochemistry ›› 1994, Vol. 12 ›› Issue (2): 110-114.DOI: 10.7517/j.issn.1674-0475.1994.02.110

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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

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

Abstract

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

DIAO Li, HE GUANG-QIAN, WU SHI-KANG. A STUDY ON THE PHOTOCHEMICAL REACTION OF(4-N,N-DIMETHYL-AMINE)-PHENYL-N-PHENYL NITRONE IN POLYMER FILM[J]. Imaging Science and Photochemistry, 1994, 12(2): 110-114.

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

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