近十年来,文献中陆续出现关于取代苯并吡喃高氯酸盐类与其相应吡喃的反应产物用作有机光导聚合物增感剂的报道。据称这类增感剂比取代的三苯基吡喃盐类或单纯用苯并吡喃盐增感效率都高,但专利中提到吡喃盐和吡喃的反应产物的确切化学结构目前尚未被测定。我们在静电感光板的研制中,曾对三硝基(?)酮和取代的三苯基吡喃盐类对有机光 In the past ten years, reports on the use of reaction products of substituted benzopyran perchlorates and their corresponding pyrans have been reported in the literature as organic photoconductive polymer sensitizers. This type of sensitizer is said to be more efficient than the substituted triphenyl pyran salts or the benzopyrylium salts alone, but the exact chemical structure of the reaction product of the pyran salt and the pyran mentioned in the patent is presently present Not yet measured. We electrostatic plate in the development, had on the three nitro (?) Ketone and substituted triphenyl pyranyl salts of organic light