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首页> 外文期刊>Journal of Surfactants and Detergents >Synergistic Interaction between Nonionic Octylphenol Polyoxyethylene Ethers and Effect of Hydrophilic Chain
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Synergistic Interaction between Nonionic Octylphenol Polyoxyethylene Ethers and Effect of Hydrophilic Chain

机译：非离子辛基酚聚氧乙烯醚之间的协同相互作用及亲水链的作用

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摘要

The micellization of binary mixture composed of nonionic octylphenol polyoxyethylene ether (OP-n, n is the average number of oxyethylene unit) and its homologues, as well as the effect of hydrophilic chain were investigated. The tensiometry was adopted to determine the critical micelle concentration of binary surfactant mixture. According to the regular solution theory, some thermodynamic models were used to predict the parameters of micellization and the thermodynamic parameters. For all the three binary mixtures of nonionic/nonionic surfactants, each of which shows a nonideal mixing and can behave synergistically in aqueous solution. For both the mixture of OP-10/OP-7 and the mixture of OP-10/OP-4, the positive deviation of the mole fraction of surfactant in mixed micelle from its ideal value coexists with the negative deviation in the entire range of compositions in aqueous solution, while for the mixture of OP-7/OP-4, it only shows a positive deviation. Thermodynamic data indicate that for all the three binary surfactant mixtures, the process of micellization is entropically spontaneous, and the change of hydrophilic chain results in the difference in the stability of mixed micelle. The results can be explained by the steric effect, the hydrogen bonding and the hydration. The work helps with understanding the interaction between molecules and properties for some industrial products constituted by nonionic surfactant and its homologues.
机译：研究了由非离子辛基酚聚氧乙烯醚（OP-N，N为氧乙烯单元的平均数量）的二元混合物的胶束化及其同源物，以及亲水链的作用。采用张力测定来确定二元表面活性剂混合物的临界胶束浓度。根据常规解决方案理论，一些热力学模型用于预测胶束化的参数和热力学参数。对于所有三种非离子/非离子表面活性剂的二元混合物，其每一个显示非膜混合，并且可以在水溶液中协同作用。对于OP-10 / OP-7的混合物和OP-10 / OP-4的混合物，表面活性剂在混合胶束中的摩尔级分的正偏差与其理想的价值与整个范围内的负偏差共存在水溶液中的组合物，而对于OP-7 / OP-4的混合物，它仅显示正偏差。热力学数据表明，对于所有三个二元表面活性剂混合物，胶束化方法是熵自发的，亲水链的变化导致混合胶束的稳定性差异。结果可以通过空间效果，氢键和水合解释。工作有助于了解分子与非离子表面活性剂及其同源物构成的一些工业产品之间的相互作用。

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