摘要
研究了具有简单结构的bola型阴离子表面活性剂二十酸二钠 (C2 0 Na2 )与阳离子型普通表面活性剂溴化十二烷基三乙铵 (C12 Et3 )混合体系的表面性质 ,发现混合体系的cmc和γcmc比C12 Et3 单一体系未有显著降低 .以负染色 ,FF TEM ,动态光散射 (DLS)及粘度方法研究了混合体系的聚集行为 ,发现混合体系中同时形成球形囊泡和管状聚集体 。
The surface properties in the mixed system of simply structured bolaform amphiphile sodium eicosanedioate (C20Na2) and cationic surfactant dodecyl triethylammonium bromide (C12Et3) were studied. Compared with the C12Et3 single system, it was found that cmc and gamma(cmc) in the mixed systems did not decrease significantly. Negative stained and FF-TEM, dynamic laser light scattering (DLS) and viscosity methods were used to investigate the aggregation behaviors in the mixed system. Global vesicles and tube-like aggregates were formed in the mixed solution and the mechanism of aggregation was proposed.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
2002年第7期1147-1150,共4页
Acta Chimica Sinica
基金
国家自然科学基金 (Nos .2 0 0 730 0 2
2 9992 5 90 4)资助项目
