کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
596380 1454046 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Morphological transitions in dilute solutions of sugar-based zwitterionic dimer betaine surfactants
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Morphological transitions in dilute solutions of sugar-based zwitterionic dimer betaine surfactants
چکیده انگلیسی

In the present study the transient morphological evolution of surfactant aggregates of dilute dimer acid betaine solutions was investigated by light scattering techniques and surface tension measurements. It is shown that dimer acid betaine solutions undergo a spontaneous formation of larger thermodynamically stable vesicles within the time period of several days via intermediate aggregation states. The vesicular structures can be destroyed by dilution but will reversibly rebuild with the same time constants indicating a true equilibrium situation similar. In contrast to other vesicle-forming surfactant systems, dimer acid betaines exhibit aggregation mechanism that are similar to those of two-component surfactant mixtures, as it has both dimeric and zwitterionic properties promoting vesicle formation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 326, Issues 1–2, 15 August 2008, Pages 103–108
نویسندگان
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