کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5211193 1382939 2008 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of functional poly(ester-andydride)s based on succinic acid
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Synthesis of functional poly(ester-andydride)s based on succinic acid
چکیده انگلیسی
This paper describes the three-step synthesis and characteristics of succinic acid based functional poly(ester-anhydride)s bearing allyl groups in side chains. Firstly, carboxyl terminated functional oligoesters with molecular weight in the range of 300-1000 were obtained by melt condensation of allyl glycidyl ether with an excess of succinic acid. Secondly, carboxyl end groups of the macromer obtained were converted to mixed anhydride groups by refluxing in acetic anhydride. In the last step, melt polycondesation of ester-anhydride prepolymers produced poly(ester-anhydride)s. Influence of molecular weight of initial oligoesters as well as of parameters of the process on selected properties of poly(ester-anhydride)s was examined. Poly(ester-anhydride)s were degraded in aqueous buffer of pH 7.4 at 37 °C. The hydrolytic degradation was monitored by determination of mass loss and by determination of ester to anhydride groups ratio.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 68, Issue 1, January 2008, Pages 351-360
نویسندگان
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