非离子型表面活性剂在水相显色体系中对络阴离子作用机理的探讨

The Investigtion of the Reaction Mechanism Between Non-ionic Surfactants and Anionic Complexes in the Aqueous Chromegenic System

本文通过详细研究金属—硫氰酸盐,杂多酸和碘-金络阴离子的显色作用,探讨了非离子表面活性剂和络阴离子的作用机理。研究表明,非离子表面活性剂能和许多阳离子(包括碱金属也可能与H_3O^+)形成大阳离子,使之易与金属络阴离子缔合。为了解释这些现象,引入一个新的、名为“阳离子螯合作用机理”(CCM)的建议。此机理能用于说明胶束增溶光度法中的一些现象。

The mechanisms of the reaction between non-ionic surfactants and anionic complexes have been investigated based on the colouration of thiocyanate metal complexed anions, heteropoly acid and iodo-metal complexed anions The studies show that the non-ionic sarfactants may chelate with many cations (including alkali metals and perhaps HO(?) to form bulky cations, which facilitating the association of accompanying anionic complexes. To account for the observations, a new proposal termed the cation chelation mech...