摘要
测定了25℃不同比例的C_(10)F_(19)O(C_(2)H_(4)O)_(9)H与C_(8)H_(17)C_(6)H_(4)O(C_(2)H_(4)O)_(10)H混合水溶液的表面张力,研究混合水溶液的表面性质与胶团形成。用两种不同方法计算在表面上的表面成份、分子之间相互作用参数(β_(σ))。结果表明,在非离子型碳氟和碳氢表面活性剂混合水溶液中,两种表面活性剂基本上各自形成胶团;表面分子相互作用参数皆为正值;表明此混合体系中碳氟链与碳氢链之间互疏作用的存在。
The surface adsorption and micelle formation of the mixed aqueous solution of fluorocarbon and hydrocarbon chains nonionic surfactants(C_(10)F_(19)O(C_(2)H_(4)O)_(9)H and C_(8)H_(17)C_(6)H_(4)O(C_(3)H_(4)O)_(10)H)have been investigated.The surface tension of the mixed solution has been determined by the drop-volume method.The results indicate that(1)there is no completely miscible micelle but essentially the individual micelle(C_(10)F_(19)O(C_(3)H_(4)O)_(9)H and(C_(8)H_(17)C_(6)H_(4)O(C_(3)H_(4)O)_(10)H))in the mixed aqueous solution,(2)surface mole fractions calculated by both methods are essentially consistent with each other,(3)the molecular interaction parameters(β_(σ))are of positive values.All of these indicate the real existence of"mutual phobicity"between the fluorocarbon and hydrocarbon chains in the mixed system.
作者
丁慧君
陈新
赵国玺
Ding Huijun;Chen Xin;Zhao Guoxi(Department of Chemistry,Peking University,Beijing)
出处
《高等学校化学学报》
SCIE
EI
CAS
1987年第8期726-730,共5页
Chemical Journal of Chinese Universities
