کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7901672 1510435 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dynamic light scattering study of temperature and pH sensitive colloidal microgels
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Dynamic light scattering study of temperature and pH sensitive colloidal microgels
چکیده انگلیسی
Microgel particles composed of Interpenetrated Polymer Network (IPN) of poly(N-isopropylacrylamide) (PNIPAM) and poly(acrylic acid) (PAAc) dispersed in water have been investigated through dynamic light scattering. The study of the temperature, concentration and pH dependence of the relaxation time has highlighted the existence of a thermoreversible transition corresponding to the swollen-shrunken volume phase transition. The presence of PAAc introduces an additional pH-sensitivity with respect to the temperature-sensitivity due to PNIPAM and leads to interesting differences in the transition process at acid and neutral pH.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 407, 1 January 2015, Pages 361-366
نویسندگان
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