Review on transesterification in polycarbonate–poly(butylene terephthalate) blend,Polymer Engineering and Science

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Review on transesterification in polycarbonate–poly(butylene terephthalate) blend
Polymer Engineering and Science ( IF 3.2 ) Pub Date : 2021-02-11 , DOI: 10.1002/pen.25652
Anirban Ganguly ₁ , Priyanka Channe ₂ , Roshan Jha ₁ , Susanta Mitra ₁ , Sampa Saha ₂

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Various polycarbonate ‐ poly(butylene terephthalate) polyester (PC‐PBT) blend prepared by reactive melt blending primarily in extruder with range of temperature and time are discussed in this review article. In the melt blended PC‐PBT blend system, transesterification plays a major role in formation of PC‐PBT blend. Transesterification reactions between these two polymers have been analyzed by proper polymer sample, end‐capped or having reactive chain end group. The kinetics of mechanism is a function of temperature and PC‐PBT ratio. Trace catalyst residue present in PBT catalyzes the transesterification reaction. As the extent of transesterification is increased, it forms various composition of copolymer. Inhibition in the transesterification reaction of PC‐PBT blend has been observed when different type of alkyl, aryl, and alkyl‐aryl group of phosphite are introduced into it, otherwise there has been collateral change in the morphology, thermal, and mechanical property of blend. Therefore, this PC‐PBT blend has been an interesting topic of research in academia and industries.

中文翻译：

聚碳酸酯-聚对苯二甲酸丁二醇酯共混物中的酯交换反应综述

本文主要讨论在反应温度和时间范围内主要通过在挤出机中进行反应性熔融共混制备的各种聚碳酸酯-聚对苯二甲酸丁二醇酯（PC-PBT）聚酯共混物。在熔融共混的PC-PBT共混体系中，酯交换作用在PC-PBT共混物的形成中起主要作用。这两种聚合物之间的酯交换反应已通过适当的聚合物样品进行了分析，包括端封端或具有反应性链端基的聚合物。机制的动力学是温度和PC-PBT比的函数。PBT中存在的痕量催化剂残留物催化酯交换反应。随着酯交换反应程度的增加，它形成共聚物的各种组成。当不同类型的烷基，芳基，将亚磷酸烷基酯和亚烷基烷基芳基引入其中，否则共混物的形态，热和机械性能会发生附带变化。因此，这种PC-PBT混合物已成为学术界和工业界研究的有趣话题。

更新日期：2021-03-07

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