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对一种可望应用于 6 94nm激光防护的铟酞菁染料 (InPc) ,利用玻璃模具制备了铟酞菁掺杂高分子聚甲基丙烯酸甲酯和聚碳酸酯薄膜。研究了该染料的氯仿溶液和薄膜吸收光谱 ,并分析了电子结构 ,同时推导了溶液中的光褪色机理。研究表明 ,在实验溶液浓度范围内InPc以单体形式存在 ,6 94nm处的吸收强度和窄吸收峰形符合激光防护的要求 ,而InPc薄膜 Q 带出现两个吸收强度大致相等的峰 ,吸收波长较溶液光谱有少量蓝移或红移 ,吸收带增宽 ,且在不同高分子体系中获得相同吸光强度的薄膜所需染料的量明显不同 ,这主要是由于染料分子发生光降解和聚集态不同而使薄膜光谱特点复杂化。同时 ,通过对褪色产物分析探讨了该染料分子在氯仿溶液中可能发生的光降解断裂方式
For an indium phthalocyanine dye (InPc) which is expected to be applied to 694nm laser protection, indium phthalocyanine doped polymer polymethylmethacrylate and polycarbonate films were prepared by using a glass mold. The dye solution and the absorption spectrum of the film were studied, and the electronic structure was analyzed. At the same time, the mechanism of light fading in solution was deduced. The results show that InPc exists as a monomer in the concentration range of the experiment solution, and the absorption intensity at 694nm and the narrow absorption peak accord with the requirements of laser protection. In the QP band of InPc film, there are two peaks with approximately equal absorption intensity. The absorption wavelength Compared with the solution, there was a small amount of blue shift or red shift in the spectrum of the solution, the absorption band broadened, and the amount of dye required to obtain the same light absorption intensity in different macromolecular systems was significantly different, mainly due to photodegradation and aggregation of dye molecules Making the spectral characteristics of the film complex. At the same time, the photodegradation and cleavage mode of the dye molecule in chloroform solution was discussed through the analysis of fading products