کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1378181 981995 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and characterization of N-propyl-N-methylene phosphonic chitosan derivative
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Synthesis and characterization of N-propyl-N-methylene phosphonic chitosan derivative
چکیده انگلیسی

A simple methodology for the preparation of a new chitosan derivative called N-propyl-N-methylene phosphonic chitosan (PNMPC) is proposed. Introduction of a propyl chain onto a modified chitosan (N-methylene phosphonic chitosan) offers the presence of hydrophobic and hydrophilic branches for controlling solubility properties of the new derivative. Its chemical identity was determined by FT-IR, 1H, 13C and 31P NMR spectroscopy. The degree of propyl substitution estimated by elemental analysis was 0.64. Furthermore derivative molecular weight is about 60 × 103, X-ray diffraction and SEM showed certain degree of crystallinity and homogeneous surface with a rather packed structure. This derivative opens new perspectives in food, pharmaceutical and cosmetic fields.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 79, Issue 2, 20 January 2010, Pages 475–480
نویسندگان
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