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本文设计、合成了一系列新型的三重态光敏功能性表面活性剂——对苯甲酰苄基三烷基溴化铵(简称PKT)。测定了它们的吸收光谱和发光光谱,比较了它们分子聚集形成胶束前后的光谱性质,结果表明,在均相溶液中光敏基团保持原有光敏剂分子的光谱性质。但在水溶液中,在形成胶束临界浓度前后,BP基团的光谱性质发生突变,峰值发生红移并强度减弱。在非水溶液中,由于功能性表面活性剂是逐步缔合过程,光谱性质发生逐步变化。
In this paper, we designed and synthesized a series of novel triplet photosensitive functional surfactants, p-benzoylbenzyl trialkyl ammonium bromide (PKT). Their absorption spectra and luminescence spectra were measured. The spectral properties of their molecules before and after micelle aggregation were compared. The results showed that the photosensitizer retained the original spectral properties of the photosensitizer in the homogeneous solution. However, in the aqueous solution, the spectral properties of the BP group change suddenly before and after the critical concentration of micelles is formed, and the peak shifts red and the intensity decreases. In non-aqueous solution, the functional properties of surfactants are gradually changing and their spectral properties change step by step.