کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9901520 | 1545424 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Water sorption-desorption behaviour of methyl methacrylate-starch copolymers: effect of hydrophobic graft and drying method
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
بیوتکنولوژی یا زیستفناوری
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Water sorption-desorption behaviour of methyl methacrylate-starch copolymers: effect of hydrophobic graft and drying method Water sorption-desorption behaviour of methyl methacrylate-starch copolymers: effect of hydrophobic graft and drying method](/preview/png/9901520.png)
چکیده انگلیسی
Moisture sorption and desorption isotherms were measured at 25 °C and analysed according to GAB and Young-Nelson equations, which distinguish between different physical forms of moisture distribution. The Young-Nelson model gave the best fit to the experimental data. The results obtained showed that the presence of the acrylic component modified not only the total hygroscopicity of the copolymers, as compared with the original starch derivatives, but also the water distribution in the solid, which might have an important role in the effect of moisture content on copolymer characteristics. The main water-sorption mechanism seemed to be absorption into the copolymer particles structure, in agreement with their starching nature. In terms of water sorption-desorption characteristics, no marked differences were found between the two drying methods used.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Pharmaceutics and Biopharmaceutics - Volume 59, Issue 3, April 2005, Pages 537-548
Journal: European Journal of Pharmaceutics and Biopharmaceutics - Volume 59, Issue 3, April 2005, Pages 537-548
نویسندگان
I. Bravo-Osuna, C. Ferrero, M.R. Jiménez-Castellanos,