聚甲基丙烯酸甲酯在氧化环境中的热分解动力学

IF 1.4 4区化学 Q4 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL

Russian Journal of Physical Chemistry B Pub Date : 2024-09-11 DOI:10.1134/S1990793124700362

E. A. Salgansky, M. V. Salganskaya, D. O. Glushkov

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引用次数: 0

摘要

摘要利用热重分析法（TGA）测定了聚甲基丙烯酸甲酯（PMMA）在氧化环境中的热分解动力学常数，样品加热速率的范围很宽。聚合物分解的动力学常数值是用基辛格法测定的。结果表明，随着聚合物分解程度的增加，在恒定温度下的速率常数会降低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Kinetics of Thermal Decomposition of Polymethylmethacrylate in an Oxidizing Environment

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Kinetics of Thermal Decomposition of Polymethylmethacrylate in an Oxidizing Environment

Using thermogravimetric analysis (TGA), the kinetic constants of the thermal decomposition of polymethylmethacrylate (PMMA) in an oxidizing environment are determined over a wide range of sample heating rates. The values of the kinetic constants of polymer decomposition are determined by the Kissinger method. It is shown that as the degree of polymer decomposition increases, the rate constant decreases at a constant temperature.

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来源期刊

Russian Journal of Physical Chemistry B 化学-物理：原子、分子和化学物理

CiteScore

2.20

自引率

71.40%

发文量

106

审稿时长

4-8 weeks

期刊介绍： Russian Journal of Physical Chemistry B: Focus on Physics is a journal that publishes studies in the following areas: elementary physical and chemical processes; structure of chemical compounds, reactivity, effect of external field and environment on chemical transformations; molecular dynamics and molecular organization; dynamics and kinetics of photoand radiation-induced processes; mechanism of chemical reactions in gas and condensed phases and at interfaces; chain and thermal processes of ignition, combustion and detonation in gases, two-phase and condensed systems; shock waves; new physical methods of examining chemical reactions; and biological processes in chemical physics.