STUDY OF CRYSTALLINITY OF POLY(ETHYLENE TEREPHTHALATE)——Ⅴ. Effect of Catalyst in the Esterexchange Synthesis of PET

YANG Shi-kun; YANG Wei; CHEN Yu-jun

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STUDY OF CRYSTALLINITY OF POLY(ETHYLENE TEREPHTHALATE)——Ⅴ. Effect of Catalyst in the Esterexchange Synthesis of PET

Research Article | 更新时间：2021-03-19

- STUDY OF CRYSTALLINITY OF POLY(ETHYLENE TEREPHTHALATE)——Ⅴ. Effect of Catalyst in the Esterexchange Synthesis of PET
- Acta Polymerica Sinica Issue 2, Pages: 88-92(1987)
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- Published：20 April 1987，
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YANG Shi-kun, YANG Wei, CHEN Yu-jun. STUDY OF CRYSTALLINITY OF POLY(ETHYLENE TEREPHTHALATE)——Ⅴ. Effect of Catalyst in the Esterexchange Synthesis of PET. [J]. Acta Polymerica Sinica (2):88-92(1987)
DOI：

YANG Shi-kun, YANG Wei, CHEN Yu-jun. STUDY OF CRYSTALLINITY OF POLY(ETHYLENE TEREPHTHALATE)——Ⅴ. Effect of Catalyst in the Esterexchange Synthesis of PET. [J]. Acta Polymerica Sinica (2):88-92(1987) DOI：

摘要

用酯交换法合成了二个不同催化剂系列的聚对苯二甲酸乙二酯(PET)

并用DSC研究了催化剂对PET结晶性能的影响。以过冷程度、过热程度、熔体结晶峰等表征它们的结晶性能。结果表明:催化剂中金属元素的电负性(或lgβ1)不仅与其催化活性有关

而且在一定程度上影响PET的结晶

可能是催化剂中金属离子的存在加速了结晶的成核速度。

Abstract

We have synthesized poly (ethylene terephthalate) (PET)

with two series of different catalysts in the process of esterexchange reaction.The catalyst effects the crystal behavior of PET was studied by DSC. The crystal behavior of PET by different catalysts is characterized by supercooled degree

superheated degree

peak of melt crystallization ect. It has been shown that the electronegativity (or lg β1) of metallic element involved in catalysts not only influence the cause of activity of catalyst

but also affect the crystal of PET in some way. It is probable the rate of forming crystal embryos is speeded up in presence of cetain metallic ion of catalysts.

关键词

聚对苯二甲酸乙二酯结晶性差示扫描量热催化剂的电负性

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