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选用碳链长度相同、极性基不同的三类表面活性剂:两性(C12BE)、阴离子(SDS)、阳离子(DTAB)形成胶束,通过高分辨核磁共振仪及分光光度计,研究了有或无高分子化合物PVP(聚乙烯吡咯烷硐)时,三类胶束增溶苯甲醇的位置及增溶量。结果表明,PVP包缠于SDS胶束外围,并有部分高分子链嵌入胶束中,使胶束粒径扩大,不仅使SDS长链亚甲基裂分所需的增溶量增大,而且SDS胶束增溶苯甲醇的总量也增大。但是,C12BE和DTAB的增溶位置和增溶量基本不受PVP的影响。
Three types of surfactants with the same carbon chain length and different polar groups were selected: C12BE, SDS and DTAB to form micelles. By means of high-resolution NMR and spectrophotometer, No polymeric compounds PVP (polyvinyl pyrrolidone), the three types of micelles solubilized benzyl alcohol position and solubilization. The results showed that PVP wrapped around the periphery of the SDS micelles, and some polymer chains embedded in the micelles, micellar particle size expansion, not only the SDS long chain methylene splitting required increase in the amount of solubilization, and SDS micellar solubilization of benzyl alcohol also increased the total amount. However, the solubilization sites and solubilities of C12BE and DTAB are largely unaffected by PVP.