کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4981516 1453525 2017 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Coacervation with surfactants: From single-chain surfactants to gemini surfactants
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Coacervation with surfactants: From single-chain surfactants to gemini surfactants
چکیده انگلیسی


- Simple coacervation occurs in aqueous solution of single-chain surfactants and gemini surfactants with and without additives.
- Complex coacervation occurs in aqueous solutions of single-chain surfactants and gemini surfactants with polymers with and without additives.
- Gemini surfactants show more possibilities and unique feature in generating coacervation.

Coacervation is a spontaneous process during which a colloidal dispersion separates into two immiscible liquid phases: a colloid-rich liquid phase in equilibrium with a diluted phase. Coacervation is usually divided into simple coacervation and complex coacervation according to the number of components. Surfactant-based coacervation normally contains traditional single-chain surfactants. With the development of surfactants, gemini surfactants with two amphiphilic moieties have been applied to form coacervation. This review summarizes the development of simple coacervation and complex coacervation in the systems of single-chain surfactants and gemini surfactants. Simple coacervation in surfactant solutions with additives or at elevated temperature and complex coacervation in surfactant/polymer mixtures by changing charge densities, molecular weight, ionic strength, pH, or temperature are reviewed. The comparison between gemini surfactants and corresponding monomeric single-chain surfactants reveals that the unique structures of gemini surfactants endow them with higher propensity to generate coacervation.

264

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Colloid and Interface Science - Volume 239, January 2017, Pages 199-212
نویسندگان
, ,