کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5209735 | 1503068 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Renewable epoxy networks by photoinitiated copolymerization of poly(3-hydroxyalkanoate)s and isosorbide derivatives
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
New biodegradable epoxy networks derived from poly(3-hydroxyalkanoate)s and isosorbide were synthesized by photoinitiated cationic ring opening polymerization in the presence of diaryl iodonium salt (I 250). Bis-epoxidized terminated PHA oligomers, PHA-diepoxy, were first prepared in three steps, microwave assisted alcoholysis in the presence of ethylene glycol, condensation with allyl isocyanate and epoxidation of alkene terminal groups. Moreover, isosorbide diglycidyl ether (DGEDAS) was prepared by epoxidation of allylic derivative. The photoinitiated polymerization is a straightforward way applied at room temperature in a very short reaction time (i.e. 300Â s) to obtain renewable crosslinked networks that remain partially biodegradable by lipase. Higher degradability was observed by increasing the content of PHA.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 93, August 2015, Pages 95-100
Journal: Reactive and Functional Polymers - Volume 93, August 2015, Pages 95-100
نویسندگان
C. Lorenzini, D.L. Versace, E. Renard, V. Langlois,