【摘要】 <正> 烷基硫酸盐(CnS)的抗盐能力很差,在其中引进氧乙烯基(Eo)以后,形成的烷基聚氧乙烯基醚硫酸盐(CnEnS)的抗盐能力明显增强。把CnEnS加到CnS中,形成混合表面活性剂的低温抗盐能力也将明显改善。Doscher、Schott等人认为,CnEnS中的Eo与高价金属阳离子形成了一种“复合物”,这使得CnEnS具有很强的抗盐能力。Chiu则没有发现这种“复合物”。显然,了解CnEmS的抗盐机理,对于该类表面活性剂的理论研究和实际应用,都有重要的意义。更多还原

【Abstract】 The concentration （c）-voltage （V） relations of K⁺ and Ca²⁺ in surfactant solutions have been measured by ionic selective electrodes. The results show that it is very easy to form ion-pair, for alkyl sulfate（RS）and metallic cations which is the reason why the eletrolyte tolerance of RS is very low; The situation between the polyoxyethylene group in alkylpolyox yethylene ether sulfate salts （RE_nS） and multivalent metallic cations (Mnⁿ⁺) may be considered as the interaction performed by complexation, which prevents RE_nS and Mⁿ⁺ to form ion-pair, and this is one of the reasons why RE_nS have a higher eletrolyte tolerance.更多还原