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首页> 外文期刊>Journal of Applied Polymer Science >The Glycolysis of Poly (ethylene terephthalate)
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The Glycolysis of Poly (ethylene terephthalate)

机译：聚对苯二甲酸乙二醇酯的糖酵解

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The experiments were carried out in excess ethylene glycol (EG) and poly (ethylene terephthalate) (PET) oligomer in the presence of zinc acetate as catalyst at 190 deg C. It was found that during the glycolysis reaction, the monomer and dimer were contained in the liquid phase. After 2 h of the glycolysis reaction, an equilibrium state between the monomer and dimer was seen to approach. The equilibrium value of 0.51 between the monomer and dimer obtained at 190 deg C was in good agreement with previously published values. It was found that the catalyst concentration facilitated equilibrium and inreased the glycolysis rate. A reduced amount of EG in the initial feed resulted in a decrease in the glycolysis rate.
机译：在过量的乙二醇（EG）和聚对苯二甲酸乙二酯（PET）低聚物下，在乙酸锌作为催化剂的条件下于190℃进行实验。发现在糖酵解反应过程中，含有单体和二聚体在液相中。糖酵解反应2小时后，发现单体和二聚体之间达到平衡状态。在190℃下获得的单体与二聚体之间的平衡值为0.51与先前公开的值很好地一致。发现催化剂浓度促进平衡并增加糖酵解速率。初始饲料中减少的EG量导致糖酵解速率降低。

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