二聚表面活性剂性能的研究

Research on Properties of Dimeric Surfactant

二聚表面活性剂是一类新型的表面活性剂 ,是由两个单链单头基普通表面活性剂在离子头基处通过化学键联接而成。其独特的分子结构使其具有与传统表面活性剂不同的特性 ,如cmc值很低 ,降低水溶液表面张力的效率很高等。本文着重介绍该表面活性剂的结构特点、合成方法、性质及应用。

Dimeric surfactant is a new kind of surfactants. And two identical amphiphilic molecules are covalently connected through a spacer group in the dimeric surfactant molecules. Comparing with conventional surfactants, the distinct molecular structure of dimeric surfactants make them possess special properties, such as quite lower surface tension and higher efficiency for reducing surface tension. The molecular structure of dimeric surfactant, method of synthesis, properties and applications were introduced in this paper.