کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1383928 982380 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phosphorylated polysaccharides. 2. Synthesis and properties of phosphorylated dextran
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Phosphorylated polysaccharides. 2. Synthesis and properties of phosphorylated dextran
چکیده انگلیسی

New results regarding the synthesis and characterization of water-soluble phosphorylated dextran (PDex) are presented. The phosphorylation was made by reaction of dextran with phosphorous acid in molten urea. The structure of phosphorylated product was investigated by elemental analysis, by titration of acidic groups and by FTIR and NMR spectroscopy. It was found that phosphorylated dextran prepared in these conditions is a monobasic dextran phosphate with (H)P(O)(OH) groups. The degree of polymerization of PDex was found comparable to the parent dextran, suggesting that polysaccharide chain was not degraded during phosphorylation. The polyelectrolyte behavior was studied by potentiometric and conductometric titration and by viscometric measurements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 82, Issue 4, 11 November 2010, Pages 1271–1277
نویسندگان
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