| 摘 要： | The dependence of the rate of polymerization on the aniline concentration in the photopolymerization of acrylonitrile initiated by aniline was studied.The rate of polymerization of acrylonitrile increased with increasing of the aniline concentration and showed a maximum at first, then showed another increase after a minimum.This phenomenon was explained with the extinction coefficient of aniline at 313 nm,334 nm and 365 nm wavelengths.Similar results were obtained for the aniline derivatives.Therefore, the initiator exponents in the photopolymerization varies with the different concentrations of initiator and the square-root dependence can be obtained only at certain low concentrations, i.e. with low absorbance.
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