کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5190521 | 1381208 | 2006 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel route to α,Ï-telechelic poly(É-caprolactone) diols, precursors of biodegradable polyurethanes, using catalysis by decamolybdate anion
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A new convenient route for the synthesis of poly(É-caprolactone) (PCL) with α,Ï-telechelic diols' end-groups is presented. Synthesis of α,Ï-telechelic PCL diols (HOPCLOH) was achieved by ring-opening polymerization (ROP) of É-caprolactone (CL) catalyzed with ammonium decamolybdate (NH4)8[Mo10O34] and using diethylene glycol (DEG) as initiator. Obtained HOPCLOH was characterized by 1H and 13C NMR, FT-IR, GPC and MALDI-TOF. Comparative studies demonstrate that ammonium decamolybdate (NH4)8[Mo10O34] is better catalyst than Sn-octanoate (SnOct2) toward CL polymerization in presence of DEG, under the conditions tested. A biodegradable poly(ester-urethane-urea) derivative was efficiently prepared from synthesized HOPCLOH. Obtained polymer shows minor differences with respect to the properties recorded for a poly(ester-urethane-urea) obtained from commercial HOPCLOH.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 47, Issue 26, 8 December 2006, Pages 8420-8429
Journal: Polymer - Volume 47, Issue 26, 8 December 2006, Pages 8420-8429
نویسندگان
José E. Báez, Ángel Marcos-Fernández, Rosa Lebrón-Aguilar, Antonio MartÃnez-Richa,