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用紫外-可见吸收光谱和荧光发射光谱研究了氯化聚氯乙烯(Cl～PVC)分别与无色结晶紫(LCV)、无色孔雀绿(LMG)、二甲基黄(DMY)、五甲氧基红(PMOR)和二苯胺(DPA)组成的光敏变色片。Cl—PVC 在这些变色片中既是成膜剂,也是成色反应的活化剂.增感剂米氏酮在DMY 和PMOR 变色片中起增感作用,在DPA 变色片中既起增感作用,也参与了成色过程的光化学作用.
The effects of chlorinated polyvinyl chloride (Cl ~ PVC) with colorless crystal violet (LCV), colorless malachite green (LMG), dimethyl yellow (DMY) and pentachloroperamide were studied by UV - Vis absorption and fluorescence emission spectroscopy. Photochromic films composed of oxy-red (PMOR) and diphenylamine (DPA). Cl-PVC is both a film-forming agent and a color-forming activator in these discolorations. Sensitizer Michler’s ketone acts as a sensitizing agent in DMY and PMOR discoloration and both as a sensitizing agent in DPA discoloration Participated in the photochemical process of color forming.