کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5186673 | 1381111 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cryogels of cellulose derivatives prepared via UV irradiation of moderately frozen systems
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Cryogels of non-ionic (hydroxypropyl)methylcellulose, 2-hydroxyethylcellulose, methylcellulose and cationic hydroxyethylcelluloses were prepared for the first time via UV irradiation of moderately frozen systems. The influence of the irradiation time, the concentration of the photoinitiator (4-benzoylbenzyl)trimethylammonium chloride, and the concentration of the polymer solution on the efficiency of the cross-linking process in moderately frozen systems was investigated. It was found that 2-min irradiation at an irradiation dose rate of 5.7Â J/cm2Â min is adequate for cross-linking of 3Â wt.% polymer solutions resulting in high quality cryogel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 47, Issue 19, 7 September 2006, Pages 6481-6484
Journal: Polymer - Volume 47, Issue 19, 7 September 2006, Pages 6481-6484
نویسندگان
Petar Petrov, Elissaveta Petrova, Rayna Stamenova, Christo B. Tsvetanov, Gerard Riess,