A novel route to α,ω-telechelic poly(-caprolactone) diols, precursors of biodegradable polyurethanes, using catalysis by decamolybdate anion |
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Authors: | Jos E Bez ngel Marcos-Fernndez Rosa Lebrn-Aguilar Antonio Martínez-Richa |
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Affiliation: | aFacultad de Química, Universidad de Guanajuato, Noria Alta S/N, 36050 Guanajuato, Gto., Mexico;bDepartamento de Química y Tecnología de Elastómeros, Instituto de Ciencia y Tecnología de Polímeros (CSIC), C/Juan de la Cierva No. 3, 28006 Madrid, Spain;cInstituto de Química-Física “Rocasolano” (CSIC), Serrano 119, 28006 Madrid, Spain |
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Abstract: | A new convenient route for the synthesis of poly(-caprolactone) (PCL) with α,ω-telechelic diols' end-groups is presented. Synthesis of α,ω-telechelic PCL diols (HOPCLOH) was achieved by ring-opening polymerization (ROP) of -caprolactone (CL) catalyzed with ammonium decamolybdate (NH4)8Mo10O34] 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)8Mo10O34] 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. |
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Keywords: | Ring-opening polymerization α ω -Telechelic poly(sciencedirect com/scidirimg/entities/25b -caprolactone) diols" target="_blank">gif" alt="var epsilon" title="var epsilon" border="0">-caprolactone) diols Decamolybdate anion |
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