期刊
POLYMER DEGRADATION AND STABILITY
卷 96, 期 2, 页码 204-211出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2010.11.016
关键词
Vinylidene cyanide; Fluorinated copolymer; Pyrolysis GC-MS; Thermal degradation kinetics
资金
- University of Pisa
- Inter-governmental Scientific and Technological Collaboration Program [18]
The thermal decomposition under non-oxidative conditions of a copolymer of vinylidene cyanide (VCN) and 2,2,2-trifluoroethyl methacrylate (MATRIF) was investigated by thermogravimetry (TG) and Pyrolysis-GC-MS. The type and composition of the pyrolytic products and the shape of the TG curve indicate that both the main thermal degradation process, with onset at 368 degrees C, and a minor weight loss at around 222 degrees C are mainly associated with random main-chain scission. The kinetic parameters were determined by means of dynamic and, in the case of the main degradation stage, also isothermal methods. The results obtained from the dynamic methods (Friedman, Flynn-Wall-Ozawa, and Kissinger, respectively) are in good agreement with those obtained from isothermal TG data. The activation energy was in the 177-213 kJ/mol range for the first stage, and 224-295 kJ/mol for the second stage, the highest respective values being determined from the kinetic analysis according to the Kissinger method. (C) 2010 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据