10-十一烯酸衍生物混合体系有序溶液与聚集体研究  

A Study of the Properties of Aqueous Systems of Mixed Derivatives of 10-Undecenoic Acid

作　　者：何煦[1] 李宏波[1] 黄建滨[1] 唐世华[1] 朱瑶 郑容[1] 

机构地区：[1]北京大学物理化学研究所,北京100871

出　　处：《高等学校化学学报》2002年第2期287-290,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 9733110 ;2 9992 5 90 -4 );教育部骨干教师基金资助

摘　　要：对三甲基 -[2 -( 1 0 -十一烯酰氧乙基 ) ]碘化铵 CH2 CH( CH2 ) 8COOCH2 CH2 N( CH3) 3I和 N,N-[2 -( 1 0 -十一烯酰甲基牛磺酸钠 ) ]CH2 CH( CH2 ) 8CON( CH3) CH2 CH2 SO3Na的表面及聚集行为进行了研究 .混合体系溶解度良好 ,在 4 0 cmc时仍为稳定胶团溶液 .结合正规溶液理论计算了混合体系表面吸附层、胶团的组成及分子间作用参数 .基于两亲分子几何结构及分子间相互作用原理对上述现象进行了合理解释 .The surface activity and aggregate behavior of the mixed systems of N,N [2 (10 undecenoylmethyltaurine)]sodium(UDMTS) and trimethyl [2 (10 undecenoyloxylethyl)] ammonium iodide were investigated. According to the regular solution theory, the molecular interaction parameters and the composition of the surface adsorption layer and micelle have been calculated. It was revealed that double bond at the end of hydrophobic chain, ester bond and amido bond near the hydrophilic group of the surfactant molecule reduce the molecular interaction between cationic and anionic surfactant molecules. Furthermore, tiny amount of fatty alcohol is effective to a transition from micelle to vesicle.

关 键 词：负离子表面活性剂 混合体系 囊泡 胶团 10-十一烯酸衍生物 正离子表面活性剂 聚集行为 有序组合体 生物膜 

分 类 号：O647.2[理学—物理化学] O648[理学—化学]