Study of the glycolysis of PET by oligoesters

被引：83

作者：

Colomines, GL

Robin, JJ ^{[1
]}

Tersac, G

机构：

[1] Univ Montpellier 2, Lab Org Mol Evol Mat Fluores, Grp Polymeres, F-34095 Montpellier, France

[2] Ecole Natl Super Chim Montpellier, CNRS, UMR 5076, Lab Macromol Chem, F-34296 Montpellier, France

[3] Ecole Cent Paris, Lab Genie Proc & Mat, F-92295 Chatenay Malabry, France

来源：

POLYMER | 2005年 / 46卷 / 10期

关键词：

glycolysis; PET; oligoester;

D O I：

10.1016/j.polymer.2005.02.047

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

A series of oligoesters was synthesized via the transesterification of dimethyl isophthalate with neopentyl glycol or tetraethylene glycol and the esterification of adipic acid with neopentyl glycol or tetraethylene glycol under diol/diester or diol/diacid molar ratios sufficient to limit molecular weight increasing. These oligoesters were used to depolymerize poly(ethylene terephthalate) (PET) in the presence of zinc acetate to yield new types of glycolysates. The oligoesters and the glycolysates are characterized by H-1 NMR, size exclusion chromatography (SEC). differential scanning calorimetry (DSC), thermogravimetric analyses and matrix assisted laser desorptionlionisation time of flight mass spectrometry (MALDI-TOF MS). These analyses revealed the structure of the different glycolysates. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：3230 / 3247

页数：18

共 39 条

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Recycled flexible resins in concrete [J].