碳氢碳氟表面活性剂混合胶束的NMR和ESR研究

Studies on the Mixed Micelles of Hydrocarbon and Fluorocarbon Surfactants

摘要: 用NMR、ESR和表面张力测量研究了3-十二烷氧基-2-羟丙基磺酸钠（SDEHS）与全氟辛酸钠（SPFO）混合溶液微环境性质。表面张力测定表明长链烷基磺酸盐中嵌入羟丙基后，其表面活性提高，而与SPFO混合溶液的表面活性高于单一的SDEHS和SPFO。NMR和ESR研究表明，SDEHS的碳氢链与SPFO的碳氟链之间有强烈的相互作用，SDEHS与SPFO形成混合胶束，混合胶束“界面”的微观粘度较SDEHS胶束的高。

Abstract: The mixed micellar microenvironmental properties for 3-dodecyl ether-2-hydroxy-propyl-1-sulfonate （SDEHS） and perfluorooctanoate （SPFO） were studied by using NMR,ESR and the surface tensions.The surface tension results show that the introduction of the hydroxypropyl increases the activity of the alkyl sulfonate,and the surface activity of SDEHS-SPFO aqueous is much is higher than that of SDEHS or SPFO.The spectra of NMR and ESR show that SDEHS-SPFO can form a mixed micelle,the fluorocarbon chain of SPFO has a strong interaction with the hydrocarbon chain of SDEHS,and the microviscosity of the mixed micells is higher than that of SDEHS.