高分子与表面活性剂在水相中的相互作用  

Interactions of Polymer with Surfactant in Aqueous Phase

作　　者：李海普[1] 陆文霞[1] 秦春阳[1] 姜腾达[1] 

机构地区：[1]中南大学化学化工学院,长沙410083

出　　处：《高分子通报》2013年第3期18-24,共7页Polymer Bulletin

基　　金：国家自然科学基金项目(50804055;21277175)资助

摘　　要：按照组分荷电属性的不同,高分子/表面活性剂体系可大致划分为三种:中性高分子/离子表面活性剂体系、带电高分子/离子表面活性剂体系、高分子/非离子表面活性剂体系。本文对这三种体系在水相中的高分子/表面活性剂相互作用研究进行综述。在大多数情况下,水相中高分子与表面活性剂共存时都能发生相互作用并形成复合物,其驱动力主要包括疏水作用、静电作用和氢键作用。根据高分子与表面活性剂的荷电情况及结构性质(如疏水链长度)的不同,上述驱动力可以单独或组合作用。此外,温度、pH值、电解质等外界因素对复合物形成过程及结构也具有不同程度的影响。Polymer/surfactant systems can be roughly classified into three categories such as neutral/ionic, charged/ ionic, and unspecified/nonionic ones, in terms of the respective surface charge of the two partners. On this ground, the interactions between the polymer and surfactant in aqueous phase are reviewed in this article. It is found that, in most cases, polymers can interact with surfactants in aqueous media by forming complexes. The driving forces binding polymers and surfactants into complexes are mainly due to the hydrophobic bonding, electrostatic attraction as well as hydrogen bonding, individually or collaboratively, depending on the physicochemical properties of the reactants, such as charge attributes and lengths of the hydrophobic chains. In addition, the formation mechanism and structure of the resultant complexes are also influenced more or less by pH, temperature, and ionic strength.

关 键 词：高分子 表面活性剂体系 水相 相互作用 复合物 驱动力 

分 类 号：O647.2[理学—物理化学]