کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5203329 | 1381927 | 2009 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of ultraviolet-irradiated oxygen on depolymerization of chitosan
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
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چکیده انگلیسی
In the present paper, the depolymerization of chitosan was carried out by the ultraviolet-irradiated oxygen treatment. Influence of reaction conditions on depolymerization of chitosan was investigated. The chemical structure of the depolymerized chitosan was characterized by FT-IR and 13C NMR spectra. The FT-IR and 13C NMR spectra suggested that there was no obvious modification of chemical structure of the depolymerized chitosan. The X-ray diffraction analysis showed that crystalline structure of chitosan can be destroyed by ultraviolet-irradiated oxygen. The use of depolymerization of chitosan by ultraviolet-irradiated oxygen treatment can be a convenient, timesaving, and cost-efficient method for replacing the expensive and time-consuming enzymatic or chemical methods that are currently used to depolymerize chitosan.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 94, Issue 5, May 2009, Pages 851-858
Journal: Polymer Degradation and Stability - Volume 94, Issue 5, May 2009, Pages 851-858
نویسندگان
Wu Yue, Pingjia Yao, Yuanan Wei,