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利用不同波段的线偏振紫外波长照射PI(BTDA TMMDA)膜,发现光化学反应度有较大的差别,短波长的紫外光和高光功率密度有利于增大反应度和提高取向度。在氮气和有氧条件下光照,发现有氧氛围更易于反应。
The use of linear wavelength ultraviolet radiation of different wavelength band irradiated PI (BTDA TMMDA) film and found that photochemical reaction has a greater difference, short wavelength UV and high optical power density is conducive to increasing the degree of reactivity and increase the degree of orientation. Illuminated under nitrogen and aerobic conditions, it was found that the aerobic atmosphere was easier to react.