Solution properties of mixed fluorocarbon—hydrocarbon surfactant systems

Colloids and Surfaces Pub Date : 1992-11-09 DOI:10.1016/0166-6622(92)80282-7

Masahiko Abe , Tomohiro Yamaguchi , Yasuhiro Shibata , Hirotaka Uchiyama , Norio Yoshino , Keizo Ogino , Sherril D. Christian

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引用次数: 1

Abstract

Solution properties or mixed fluorocarbon—hydrocarbon surfactant systems have been investigated with dynamic and static light scattering and with fluorescence-probe measurements.

The systems are mixtures of hexadecylpolyoxyethylene ether (C₁₆POE₂₀) with ammonium perfluorooctanoate (APFO) and/or with ammonium perfluorodecanoate (APFDe). When the concentration of fluorocarbon surfactant increases, the mutual diffusion coefficient and the second virial coefficient of mixed micelles increase, but the micelle molecular weight and the micropolarity decrease. The mutual diffusion coefficient and the second virial coefficient of mixed micelles in C₁₆POE₂₀/APFDe are larger than those in the C₁₆POE₂₀/APFO system, but the micelle molecular weight of C₁₆POE₂₀/APFDe is smaller than that of C₁₆POE₂₀/APFO.

It is found that C₁₆POE₂₀, a hydrocarbon non-ionic surfactant, mixes well with APFO and/or APFDe, a fluorocarbon anionic surfactant, and the mixed micelle is formed more easily with the surfactant containing a longer fluoroalkyl chain (APFDe) than with that having a shorter fluoroalkyl chain (APFO).

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碳氟烃表面活性剂混合体系的溶液性能

用动态和静态光散射以及荧光探针测量研究了混合氟碳-碳氢表面活性剂体系的溶液性质。该体系是十六烷基聚氧乙烯醚(C16POE20)与全氟辛酸铵(APFO)和/或全氟癸酸铵(APFDe)的混合物。随着氟碳表面活性剂浓度的增加，混合胶束的相互扩散系数和二次维里系数增大，但胶束分子量和微极性减小。C16POE20/APFDe体系中混合胶束的相互扩散系数和二次维里系数均大于C16POE20/APFO体系，但其胶束分子量小于C16POE20/APFO体系。发现烃类非离子表面活性剂C16POE20与氟碳阴离子表面活性剂APFO和(或)APFDe混合良好，且含较长氟烷基链的表面活性剂(APFDe)比含较短氟烷基链的表面活性剂(APFO)更容易形成混合胶束。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Colloids and Surfaces

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