Synthesis of cyclic oligo(ethylene adipate)s and their melt polymerization to poly(ethylene adipate)
Synthesis of cyclic oligo(ethylene adipate)s and their melt polymerization to poly(ethylene adipate)
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环状低聚己二酸乙二醇酯的合成及其熔融聚合成聚己二酸乙二醇酯
DOI：
10.1007/s10118-017-1951-4
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发表时间：
2017-05
影响因子：
4.3
通讯作者：
Tu Ying-feng
中科院分区：
文献类型：
--
作者：
Lu Min;Zhu Xiang;Li Xiao-hong;Yang Xiao-ming;Tu Ying-feng
首次以己二酸乙二醇伪高稀释缩合反应合成了环状低聚己二酸乙二醇酯S(COEA)，并通过熔融聚合合成了相应的聚己二酸乙二醇酯(PEA)。通过1H-核磁共振和MALDI-TOF质量测量对产物结构进行了表征和验证。考察了有机碱、反应温度、己二酰氯与乙二醇摩尔比等因素对COEAs收率的影响，确定了最佳反应条件。采用缩聚-偶联开环聚合的方法，以钛酸四丁酯为催化剂，1，10-正十二醇为引发剂，采用熔融聚合的方法，在200℃下合成了一种基于二元酸和二醇的半结晶绿色脂肪族聚酯PEA。我们的策略应该适用于基于二元酸和二元醇单体的多功能脂肪族聚酯的合成，这些单体作为生物相容性和生物可降解材料具有潜在的应用前景。
We present here the first synthesis of cyclic oligo(ethylene adipate)s (COEAs) via pseudo-high dilution condensation reaction of adipoyl chloride with ethylene glycol, and the synthesis of corresponding poly(ethylene adipate) (PEA) via the melt polymerization of COEAs. The structure of COEAs was characterized and proved by 1H-NMR and MALDI-TOF mass measurements. The effects of organic base, reaction temperature and the ratio of adipoyl chloride to ethylene glycol on the yield of COEAs were studied, and the optimum reaction condition was revealed. PEA, a diacid and diol based semi-crystalline green aliphatic polyester, was synthesized by the melt polymerization of COEAs using Ti(n-C4H9O)4 as catalyst and 1,10-decanediol as initiator at 200 °C, which follows the polycondensation-coupling ring-opening polymerization method. Our strategy should be applicable to the synthesis of versatile aliphatic polyesters based on diacid and diol monomers, which have potential applications as biocompatible and biodegradable materials.
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影响因子：
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作者：
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通讯作者：
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