کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5203210 | 1381923 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of transesterification and degradation on properties and structure of polycaprolactone-polylactide copolymers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of transesterification and degradation on properties and structure of polycaprolactone-polylactide copolymers Effects of transesterification and degradation on properties and structure of polycaprolactone-polylactide copolymers](/preview/png/5203210.png)
چکیده انگلیسی
Polylactide segments are more vulnerable to transesterification compared to polycaprolactone. As a result, the actual quantity of l-lactide in the polymers was less than the target for all studied copolymers because of the decarboxylation and consequent CO elimination from fragments of macromolecules after transesterification. The presence of decarboxylation during transesterification was confirmed analytically and was reflected in the MALDI-TOF and 13C NMR spectra. An analysis of the polymer structure pointed to dehydration reactions that led to the formation of cyclic structures and double bonds with possible crosslinking.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 95, Issue 12, December 2010, Pages 2596-2602
Journal: Polymer Degradation and Stability - Volume 95, Issue 12, December 2010, Pages 2596-2602
نویسندگان
Vitali T. Lipik, Leonardus K. Widjaja, Sing S. Liow, Marc J.M. Abadie, Subramanian S. Venkatraman,