【摘要】 研究了PVP对C12NCl和AS两单纯以及二者复配体系的表面张力和增溶DMAB的影响。结果表明：PVP对C12NCl的表面张力和增溶作用影响较弱，但明显降低AS的表面张力，并形成复合物，提高对DMAB的增溶量。当C12NCl／AS混合溶液中加入PVP后，可明显提高对DMAB的增溶能力，且在混合摩尔比为1：1时增溶量最大，PVP对混合溶液的表面张力曲线未出现双折点。更多还原

【Abstract】 Surface tension and solubilized amount of methyl yellow (DMAB) in 3-dodecyl-2-hydroxypropyl (C12NCl),sodium dodecylsulfonate(AS),and C12NCl/AS binary surfactants complex aqueous solutions in the presence of different amount of polyvinylpyrrolidone (PVP) have been determined. The experimental results indicate that PVP only slightly change the surface tension and ability of solubilization of C12NCl solution,while evidently weakens the surface tension of AS solution and enhances the solubilized amount of DMAB in AS solution through forming polymer-surfactant complex. When PVP is present in C12NCl/AS binary surfactants solution, the ability of solubilization for DMAB in the aqueous system will be obviously encreased,too. Maximum of the solubilization is observed when the molar ratio of C12NCl-AS is 1:1. No double turning points appear on the curves of surface tention versus concentration of the surfactants,in the prensence or absence of PVP.更多还原