Comparative study of thermal stability and thermal degradation kinetics of poly(vinyl ethers) with different side groups

IF 2.2 4区 化学 Q3 CHEMISTRY, PHYSICAL Colloid and Polymer Science Pub Date : 2024-06-22 DOI:10.1007/s00396-024-05284-5
Nikolaos V. Plachouras, Kosmas Michos–Stavridis, Stavros Zouganelis, Marinos Pitsikalis
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Abstract

This study focused on the thermal stability and the thermal degradation kinetics of two poly(vinyl ethers), PVEs, with different side groups. The objective was to determine how the nature of the side group affects the thermal properties of these materials. Poly(2–Phthalimide Ethyl Vinyl Ether), PPEVE, was derived via zirconocene–mediated cationic homopolymerization, and poly(2–Amino Ethyl Vinyl Ether), PAEVE, was obtained by hydrazinolysis of PPEVE. The thermal stability was investigated by employing thermogravimetric analysis (TGA) and differential thermogravimetry, DTG, at six different heating rates. The thermal decomposition kinetics data were evaluated using the Ozawa–Flynn–Wall, OFW, and Kissinger–Akahira–Sunose, KAS, “model-free” methods to calculate the activation energies, \(Ea\), and subsequently the appropriate mathematical model or mechanism to describe the thermal decomposition process for each individual homopolymer.

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带有不同侧基的聚乙烯醚的热稳定性和热降解动力学比较研究
这项研究的重点是具有不同侧基的两种聚乙烯醚(PVE)的热稳定性和热降解动力学。目的是确定侧基的性质如何影响这些材料的热性能。聚(2-邻苯二甲酰亚胺乙基乙烯基醚)(PPEVE)是通过锆烯介导的阳离子均聚作用得到的,而聚(2-氨基乙基乙烯基醚)(PAEVE)则是通过对 PPEVE 进行酰肼溶解得到的。在六种不同的加热速率下,采用热重分析法(TGA)和差热分析法(DTG)对其热稳定性进行了研究。热分解动力学数据采用 Ozawa-Flynn-Wall(OFW)和 Kissinger-Akahira-Sunose(KAS)"无模型 "方法进行评估,以计算活化能(Ea/),并随后选择适当的数学模型或机制来描述每种均聚物的热分解过程。
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来源期刊
Colloid and Polymer Science
Colloid and Polymer Science 化学-高分子科学
CiteScore
4.60
自引率
4.20%
发文量
111
审稿时长
2.2 months
期刊介绍: Colloid and Polymer Science - a leading international journal of longstanding tradition - is devoted to colloid and polymer science and its interdisciplinary interactions. As such, it responds to a demand which has lost none of its actuality as revealed in the trends of contemporary materials science.
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