【摘要】 介绍了中子反射在相反电荷聚电解质/表面活性剂体系的界面行为研究中的基本原理。在阐述经典的弱相互作用体系的界面吸附行为和表面张力曲线的基础上,分析了聚合物浓度、电解质、表面活性剂疏水基链长对相反电荷聚电解质/表面活性剂体系表面张力曲线的影响,并结合中子反射实验结果,根据相反电荷聚电解质/表面活性剂体系的表面张力曲线是否出现突跃峰,将其界面吸附行为分为两类并提出了两种类型表面张力曲线对应的理论模型。更多还原

【Abstract】 In this paper,basic principle of neutron reflectivity techniques,used in the oppositely charged polyelectrolyte/surfactant systems,was introduced.On the basis of introduction of the interfacial behavior and the surface tension curve of the weak interaction system,the effect of the polymer concentration,electrolyte and the chain length of surfactant on the surface tension were analyzed.According to the data determined by the neutron reflectivity and the existence of the surface tension peak,the interfacial behavior,the types of surface tension plots and theoretical model for oppositely charged polyelectrolyte/surfactant systems were pointed out.更多还原