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引言胶束的概念是由McBain在本世纪初提出的,并认为胶束呈球状结构。1951年Debye等人首次发现十二烷基三甲基铵盐在0.2M KBr溶液中,形成棒状胶束。此后,对胶束的形态进行了许多研究。结果表明,球状胶束的聚集数通常约为100;当聚集数更大时,胶束为非球形。表面活性剂浓度的增加和添加盐类,都对胶束形态产生影响。通常浓度不太大时(超过CMC不多),胶束呈球形。随着浓度增加,转变成
Introduction The concept of micelles was first proposed by McBain at the beginning of this century, and the micelles are assumed to be spherical. 1951 Debye et al. First found that dodecyltrimethylammonium salt in 0.2M KBr solution, the formation of rod-like micelles. Since then, much research has been done on the morphology of micelles. The results show that the number of spherical micelles aggregation is usually about 100; when the aggregation number is larger, the micelles are non-spherical. The increase of surfactant concentration and the addition of salts all affect the morphology of micelles. Usually when the concentration is not too large (not more than CMC), micelles spherical. As the concentration increases, it becomes