کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5202952 | 1381914 | 2012 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Novel photocrosslinkable and biodegradable polyester from bio-renewable resource
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Novel photocrosslinkable and biodegradable polyester from bio-renewable resource Novel photocrosslinkable and biodegradable polyester from bio-renewable resource](/preview/png/5202952.png)
چکیده انگلیسی
Novel photocrosslinkable and biodegradable polyester with was synthesized by polycondensation of 3,4-dihydroxycinnamic acid (DHCA) and 10-hydroxycapric acid (HDA) which were derived form lignin and castor oil respectively. The molecular structure of poly(DHCA-co-HDA) copolymers was characterized by FTIR and 1H NMR measurement. The presence of HDA in the copolymers enhanced the flexibility of macromolecular chain, thus it lowed the glass transition temperature and accelerated the photoreactivity of polyester. Poly(DHCA-co-HDA) copolymers exhibited fairly good tensile properties. The elongation at break was enhanced with increasing the content of HDA. After UV photo-crosslinking, the tensile strength was further improved and elongation at break decreased. The hydrolysis experiments revealed that copolymers are facile biodegradable, and the hydrolysis rate of was accelerated after photo-crosslinking.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 97, Issue 4, April 2012, Pages 578-583
Journal: Polymer Degradation and Stability - Volume 97, Issue 4, April 2012, Pages 578-583
نویسندگان
Weifu Dong, Jingjiao Ren, Ling Lin, Dongjian Shi, Zhongbin Ni, Mingqing Chen,