Thermal degradation of poly(methyl methacrylate) (PMMA): modelling of DTG and TG curves

被引：319

作者：

Ferriol, M

Gentilhomme, A

Cochez, M

Oget, N

Mieloszynski, JL

机构：

[1] Univ Metz, Lab Chim & Applicat, EA 3471, F-57500 St Avold, France

[2] Univ Metz, Lab Chim & Applicat, EA 3471, F-57012 Metz 01, France

来源：

POLYMER DEGRADATION AND STABILITY | 2003年 / 79卷 / 02期

关键词：

thermal degradation; pyrolysis; thermogravimetry; simulation; modelling; poly(methyl methacrylate); PMMA; DTG; TG;

D O I：

10.1016/S0141-3910(02)00291-4

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The thermal behaviour of poly(methyl methacrylate) (PMMA) with average molecular weights of 996,000 and 350,000 g mol(-1) was investigated by thermogravimetric analysis in dynamic conditions at four different heating rates: 2, 5, 8 and 10 K min(-1). In inert atmosphere, four degradation steps were found to be involved supporting the degradation behaviour previously investigated in the literature. Assuming four independent reactions, the apparent kinetic parameters were determined for each step using a non-linear fitting algorithm allowing us to simulate the overall weight loss of PMMA in any given experimental conditions. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：271 / 281

页数：11

共 19 条

[1] Thermal degradation of methyl. methacrylate polymers functionalized by phosphorus-containing molecules -: I.: TGA/FT-IR experiments on polymers with the monomeric formula CH2C(CH3)C(O)OCHRP(O)(OC2H5)2 (R=H, (CH2)4CH3, C6H5Br, C10H7) [J].