| STUDIES ON THE PHOTOPOLYMERIZATION OF ACRYLONITRILE INITIATED BY BENZOPHENONE-ANILINE SYSTEM |
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| 作者姓名： | 李橦 曹维孝 冯新德 |
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| 作者单位： | Department of Chemistry，Peking University，Beijing，Department of Chemistry，Peking University，Beijing，Department of Chemistry，Peking University，Beijing |
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| 基金项目： | Project supported by the National Natural Science Foundation of China. |
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| 摘 要： | The photopolymerization of acrylonitrile initiated by benzophenone-aniline system wasstudied under the irradiation at 365 nm. From the kinetic data measured in dimethylforma-mide the kinetic equation was presented as R_p∞[benzophenone]~(0.32) [aniline]~(0.27) [acryloni-trile]~(1.1). The rate of polymerization for different amines was in the following sequence, i.e.N, N-dimethylaniline>N-methylaniline>aniline. The influence of the polarity of solventwas investigated, from which we proposed that the proton transfer took place in the intimateradical-ion pair state of the exciplex between benzophenone and aniline. Among the twokinds of radicals produced the anilino radical is responsible for the initiation.
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