VARIATION OF THE PROPAGATION RATE COEFFICIENT WITH PRESSURE AND TEMPERATURE IN THE FREE-RADICAL BULK-POLYMERIZATION OF STYRENE

Authors
BUBACK M KUCHTA FD
Citation
M. Buback et Fd. Kuchta, VARIATION OF THE PROPAGATION RATE COEFFICIENT WITH PRESSURE AND TEMPERATURE IN THE FREE-RADICAL BULK-POLYMERIZATION OF STYRENE, Macromolecular chemistry and physics, 196(6), 1995, pp. 1887-1898
Citations number
22
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular chemistry and physics → ACNP
ISSN journal
10221352
Volume
196
Issue
6
Year of publication
1995
Pages
1887 - 1898
Database
ISI
SICI code
1022-1352(1995)196:6<1887:VOTPRC>2.0.ZU;2-O
Abstract
The propagation rate coefficient k(p) of the free-radical bulk polymer ization of styrene is determined between 30 and 90 degrees C up to a m aximum pressure of 2800 bar. The data from pulsed-laser polymerization s and product analyses by gel-permeation chromatography (PLP-GPC) are adequately represented by the expression: In [k(p)/(L . mol(-1). s(-1) )] = 17,14 - 1,873 . 10(-4) p/bar - 3748/T/K + 0,202/T/K p/bar The con sequences of deducing activation volumes and k(p)/(L . mol(-1). s(-1)) or from k(p)()(kg . mol(-1). s(-1)) are outlined.