کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
610814 880659 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Polymerized assemblies of cationic gemini surfactants in aqueous solution
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Polymerized assemblies of cationic gemini surfactants in aqueous solution
چکیده انگلیسی

A variety of polymerized assemblies of cationic gemini surfactants has been demonstrated as a function of the electrolyte concentration in aqueous solution. The gemini surfactant consists of two cationic monomeric surfactants linked with an ethylene spacer at the level of the quaternary ammonium groups. Polymerizable methacryloxy groups are covalently attached to the terminal of the hydrocarbon chains. In the lower electrolyte concentration region, radical polymerization results in the formation of spherical aggregates [Langmuir 22 (2006) 8293]. However, in the higher electrolyte concentration region, elongated tubular hollow assemblies are observed with transmission electron microscopy, as a result of polymerization of vesicular hollow assemblies spontaneously formed in the aqueous solution. These experimental results suggest that it is possible to prepare different shapes of polymerized assemblies by changing the electrolyte concentration.

A variety of polymerized assemblies of cationic gemini surfactants has been demonstrated as a function of electrolyte concentration. The polymerized assemblies were observed with cryogenic and room temperature TEM.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 330, Issue 1, 1 February 2009, Pages 250–253
نویسندگان
, , , , , , , , , , ,