کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10603222 | 982473 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigations of the effects of glyoxal cross-linking on the structure and properties of chitosan fiber
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The effect of glyoxal cross-linking on the structure and properties of chitosan fiber has been studied using different techniques. Swelling results showed that the cross-linking process can be described by a formula such as: S=79.24â5.05C+0.24C2 (S, swelling degree; C, glyoxal concentration). WAXD indicated that the cross-linking affects on the chitosan fibers at reducing of its crystallinity, e.g. from 34.7 to 27.2% for this case prepared fiber. Comparing to uncross-linked chitosan fiber, DSC and polarizing microscopy further indicated that the change of the crystal structure for cross-linked chitosan fiber is exactly affecting to the thermal properties. Additionally, SEM photographs showed that the cross-linking seems to play a role to smooth the surface of fiber due to the surface of original chitosan fiber observed roughly.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 61, Issue 4, 21 September 2005, Pages 393-398
Journal: Carbohydrate Polymers - Volume 61, Issue 4, 21 September 2005, Pages 393-398
نویسندگان
Qing Yang, Fengdong Dou, Borun Liang, Qing Shen,