کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7787735 | 1500625 | 2015 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Radiation-induced graft polymerization of chitosan onto poly(3-hydroxybutyrate)
ترجمه فارسی عنوان
پلیمریزاسیون گرافت ناشی از اشعه کیتوزان بر روی پلی (3-هیدروکسی بوتیرات)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Chitosan is among the most studied biopolymers and offers important advantages, such as biodegradability, biocompatibility and nontoxicity. In this study, this polysaccharide was grafted onto poly(3-hydroxybutyrate) using the simultaneous gamma-irradiation-initiated polymerization method. The polyester was immersed in diverse solvents, which allowed the preparation of graft copolymers with different yields and crystallinities. A successful synthesis and the estimation of the degree of crystallinity were verified by spectroscopic and calorimetric techniques. The most suitable method was found to be the thermoanalytical approach because it displayed a linear relationship between the degree of crystallinity and the increasing degree of grafting. The results also indicated that the lowest degree of grafting was seen for acetic acid (14.27%), while the highest degree corresponded to ethyl acetate (32.11%). The mechanism of grafting was proposed on the basis of the experimental results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 133, 20 November 2015, Pages 482-492
Journal: Carbohydrate Polymers - Volume 133, 20 November 2015, Pages 482-492
نویسندگان
Maykel González Torres, Susana Vargas Muñoz, Silvia G. SolÃs Rosales, Ma del Pilar Carreón-Castro, Rodrigo Alonso Esparza Muñoz, Roberto Olayo González, Miriam RocÃo Estévez González, Rogelio RodrÃguez Talavera,