Kinetic analysis of the thermo-oxidative degradation of poly(vinyl chloride) in poly(vinyl chloride)/methyl methacrylate-butadiene-styrene blends 1 - Isothermal degradation | Health & Environmental Research Online (HERO)

Health & Environmental Research Online (HERO)

Print Feedback Export to File

This record has one attached file:

Citation
Tags

HERO ID

5712023

Reference Type

Journal Article

Title

Kinetic analysis of the thermo-oxidative degradation of poly(vinyl chloride) in poly(vinyl chloride)/methyl methacrylate-butadiene-styrene blends 1 - Isothermal degradation

Author(s)

Andricic, B; Kovacic, T; Klaric, I

Year

2002

Is Peer Reviewed?

Journal

Polymer Degradation and Stability
ISSN: 0141-3910

Volume

Issue

Page Numbers

459-465

Language

English

DOI

10.1016/S0141-3910(02)00186-6

Web of Science Id

WOS:000179151600006

URL

http://://WOS:000179151600006
Exit

Abstract

The thermal degradation of poly(vinyl chloride)/poly(methyl methacrylate-butadiene-styrene) (PVC/MBS) blends was investigated by means of isothermal thermogravimetry in air. During 120 min the main process in the blends is the dehydrochlorination of PVC. The reaction rate constants were determined by applying the Prout-Tompkins model, which assumes autocatalytic degradation. Their values are about three times higher in air than in nitrogen. MBS in such conditions retards the thermo-oxidative dehydrochlorination of PVC in the blends. Applying the Arrhenius equation, apparent activation energies and pre-exponential factors were calculated. Their relationship through compensation effect was discussed and a false compensation effect was found. © 2002 Elsevier Science Ltd. All rights reserved.

Keywords

isothermal kinetics; PVC/MBS blends; thermo-oxidative degradation