کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5188740 1381168 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Novel copolyester-based ionomer for a shape-memory biodegradable material
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Novel copolyester-based ionomer for a shape-memory biodegradable material
چکیده انگلیسی
A series of biodegradable poly(oxyethylene-b-butylene adipate) ionomers (POBAis) were synthesized by bulk polymerization of adipic acid and mixed monomers of bis(poly(oxyethylene)) sulfonated dimethyl fumarate and 1,4-butanediol. The POBAis exhibited notable recovery rate ranging from 81% to 95% at near body temperature, depending on the content of ionic group. From the dynamic mechanical analysis it was found that storage modulus above rubbery plateau region significantly increased as ionic monomer was introduced up to 2.5 mol%, indicating a good dimensional stability above glass transition region. Wide angle X-ray analysis was carried out to investigate the structural variation over shape deformation and/or recovery. WAXD pattern of POBAi-2.5 revealed that α-β transition of crystal occurred during recovery process. These results may provide crucial information of the crystallizable ionomers as a potential shape-memory polymer (SMP).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 48, Issue 7, 23 March 2007, Pages 1830-1834
نویسندگان
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