کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1387470 982596 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Post functionalization of carboxymethylated starch and acrylonitrile based networks through amidoximation for use as ion sorbents
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Post functionalization of carboxymethylated starch and acrylonitrile based networks through amidoximation for use as ion sorbents
چکیده انگلیسی

Carboxymethylation of starch provided carboxymethyl starch (CMS) and the modification was followed by grafting CMS with acrylonitrile (AN) using ammonium per sulphate-N,N,N,N-tetramethylethylene diamine as initiator–accelerator system. Crosslinked networks of CMS and AN were obtained using two crosslinkers, viz., N,N-methylenebisacrylamide and ethyleneglycoldimethacrylate. The networks were further reacted with hydroxylamine to generate metal ion active amidoxime groups. The synthesized hydrogels were characterized by FTIR, SEM, nitrogen analysis and swelling studies to evaluate water uptake and the candidate polymers were used as matrices for the sorption of Fe2+ ions, as a model metal ion, as a function of time, temperature, pH and ionic strength. An attempt was made to investigate the thermodynamics of its sorption behaviour.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 66, Issue 4, 23 November 2006, Pages 435–443
نویسندگان
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