کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
611219 880670 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spontaneous volume transition of polyampholyte nanocomposite hydrogels based on pure electrostatic interaction
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Spontaneous volume transition of polyampholyte nanocomposite hydrogels based on pure electrostatic interaction
چکیده انگلیسی

A circular system is employed in this paper to investigate the swelling behaviors of polyampholyte hydrogels; this circular system can effectively eliminate the disturbance of various factors and keep the surrounding environment constant. It is found that there exists a spontaneous volume transition to the collapsed state of polyampholyte hydrogels, which is attributed to the overshooting effect, and the transition can occur repeatedly under certain conditions. 13C NMR is employed to investigate the swelling behavior of polyampholyte hydrogels. The swelling kinetics of polyampholyte hydrogels under various circular media and various circular runs are also investigated in this paper. All the results suggest that the spontaneous volume transition to the collapsed state of polyampholyte hydrogels is dominated by pure electrostatic interaction between different charges in polymer chains.

A polyampholyte nanocomposite hydrogel shows a spontaneous volume transition to the collapsed state based on a pure electrostatic interaction.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 321, Issue 2, 15 May 2008, Pages 272–278
نویسندگان
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