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采用激基缔合物荧光方法研究了磺化度和浓度对磺化聚甲基丙烯酸丁酯- b-聚苯乙烯( SBMAS)在二氯乙烷( DCE)溶液中的聚集行为。随着磺化度增加,浓度增大,由于形成分子间聚集体的机会增加,聚合物分子链发生聚集的临界聚集浓度降低,最大发射波长发生红移。当磺化度摩尔分数大于 5.01%时,由于分子链产生超级卷绕,受激生色团产生系间串跃,导致室温磷光产生,在荧光强度-浓度关系曲线上出现 2个转折点。
The agglomeration behavior of sulfonated poly (butyl methacrylate) - b - polystyrene (SBMAS) in dichloroethane (DCE) solution was studied by using the fluorescence of an excimer method. As the degree of sulfonation increases, the concentration increases. Due to the increased chances of formation of intermolecular aggregates, the critical concentration of aggregation of the polymer chains decreases and the maximum emission wavelength shifts red. When the degree of sulfonation mole fraction is greater than 5.01%, due to the super-winding of the molecular chain, the excited chromophore produces a series of interstellar jumps, resulting in phosphorescence at room temperature. There are two turning points in the fluorescence intensity-concentration curve.