KINETICS OF THERMAL-DECOMPOSITION OF HETEROPHASIC ETHYLENE-PROPYLENE COPOLYMERS

Authors
MANI R SINGH RP SIVARAM S
Citation
R. Mani et al., KINETICS OF THERMAL-DECOMPOSITION OF HETEROPHASIC ETHYLENE-PROPYLENE COPOLYMERS, Pure and applied chemistry, A31(4), 1994, pp. 413-425
Citations number
21
Categorie Soggetti
Polymer Sciences
Journal title
Pure and applied chemistry → ACNP
ISSN journal
00334545
Volume
A31
Issue
4
Year of publication
1994
Pages
413 - 425
Database
ISI
SICI code
0033-4545(1994)A31:4<413:KOTOHE>2.0.ZU;2-L
Abstract
Kinetics of thermal decomposition of various heterophasic ethylene-pro pylene copolymers in the temperature range 215-432-degrees-C by thermo gravimetry (TG) and 150-180-degrees-C by differential scanning calorim etry (DSC), where volatile formation was negligible, was investigated and compared with isotactic polypropylene. Under nitrogen flux the act ivation energy for decomposition was in the range of 71-89 kcal.mol-1 in TG and 42-64 kcal.mol-1 in DSC. The thermal stability depends on th e copolymer composition. The effect of heating rate on DSC thermograms has been studied.