کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1385102 1500620 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The chitosan-gelatin (bio)polyelectrolyte complexes formation in an acidic medium
ترجمه فارسی عنوان
ترکیبات پلی اکترولیت کیتوزان ژلاتین (بیو) در محیط اسیدی تشکیل شده است
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
The interaction of cationic polysaccharide chitosan and gelatin accompanied by the stoichiometric (bio)polyelectrolyte complexes formation has been studied by the methods of capillary viscometry, UV and FTIR spectroscopy and dispersion of light scattering. Complexes were formed in the aqueous phase, with pH being less than the isoelectric point of gelatin (pIgel). The particle size of the disperse phase increases along with the growth of the relative viscosity in comparison with sols of the individual components-polysaccharide and gelatin. Possible models and mechanism of (bio)polyelectrolyte complexes formation have been discussed. It was shown that the complex formation takes place not only due to the hydrogen bonds, but also due to the electrostatic interactions between the positively charged amino-groups of chitosan and negatively charged amino acid residues (glutamic Glu and aspartic Asp acids) of gelatin.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 138, 15 March 2016, Pages 265-272
نویسندگان
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