Surface-Active Properties and Their Photochemical Behaviors of (1-Alkyl-4-pyridiniomethyl)phosphonates
作者:Yoshiki Okamoto、Asao Hosoda、Setsuo Takamuku
DOI:10.1246/bcsj.63.3053
日期:1990.10
(1-Alkyl-4-pyridiniomethyl)phosphonates bearing long alkyl-chains of even carbon numbers of 8 to 18 were prepared. They exhibited the characteristics of surface-active agents. Upon irradiation in alkaline aqueous media, the phosphonates underwent the C–P bond cleavage to give 1-alkyl-4-methylpyridinium phosphates and as a result the surface tension of the solution also changed. The two-fold increases of the quantum yields of the C–P bond cleavage were found at their critical micelle concentrations.
(制备出了带有碳数为 8 至 18 的偶数长烷基链的(1-烷基-4-吡啶基甲基)膦酸盐。它们具有表面活性剂的特征。在碱性水介质中照射时,膦酸盐发生 C-P 键裂解,生成 1-烷基-4-甲基吡啶鎓膦酸盐,因此溶液的表面张力也发生了变化。在它们的临界胶束浓度下,C-P 键裂解的量子产率增加了两倍。