A novel route to α,c9;-telechelic poly(-caprolactone) diols, precursors of biodegradable polyurethanes, using catalysis by decamolybdate anion

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• 作者：Jos&#xe9 ; E. B&#xe1 ; ez ; &#xc1 ; ngel Marcos-Fern&#xe1 ; ndez ; Rosa Lebró ; n-Aguilar ; Antonio Mart&#xed ; nez-Richa
• 关键词：Ring-opening polymerization ; α ; c9 ; -Telechelic poly(-caprolactone) diols ; Decamolybdate anion
• 刊名：Polymer
• 出版年：2006
• 期刊代码：83_00323861
• 类别：ms
• 出版时间：8 December 2006
• 卷：47
• 期：26
• 页码：8420-8429
• 文件大小：516 K

摘要

A new convenient route for the synthesis of poly(-caprolactone) (PCL) with α,c9;-telechelic diols' end-groups is presented. Synthesis of α,c9;-telechelic PCL diols (HOPCLOH) was achieved by ring-opening polymerization (ROP) of -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.