کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1386118 982472 2009 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel polymeric flocculant based on polyacrylamide grafted carboxymethylstarch
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
A novel polymeric flocculant based on polyacrylamide grafted carboxymethylstarch
چکیده انگلیسی

Novel functionalized polymeric flocculants based on polyacrylamide grafted carboxymethylstarch (CMS-g-PAM) have been successfully synthesized via conventional method (using ceric ammonium nitrate as free radical initiator, in an inert atmosphere) as well as by using microwave irradiation (‘microwave initiated’ synthesis). Under optimal grafting conditions, 50% grafting has been observed in case of the microwave irradiation based method and 47% grafting has been observed in case of the conventional process. The synthesized graft copolymers have been characterized by elemental analysis, FTIR spectroscopy, intrinsic viscosity measurement, molecular weight determination, 13C NMR spectroscopy and scanning electron micrograph (SEM); taking carboxymethylstarch (CMS) as reference. The effects of reaction parameters onto the percentage of grafting have been studied. Further, the applicability of these grafted polymers as flocculants for the treatment of municipal sewage wastewater has also been investigated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 77, Issue 4, 19 July 2009, Pages 822–831
نویسندگان
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