ANIONIC-POLYMERIZATION OF PROPYLENE-OXIDE - ISOMERIZATION OF ALLYL ETHER TO PROPENYL ETHER END-GROUPS

Authors
YU GE HEATLEY F BOOTH C BLEASE TG
Citation
Ge. Yu et al., ANIONIC-POLYMERIZATION OF PROPYLENE-OXIDE - ISOMERIZATION OF ALLYL ETHER TO PROPENYL ETHER END-GROUPS, Journal of polymer science. Part A, Polymer chemistry, 32(6), 1994, pp. 1131-1135
Citations number
12
Categorie Soggetti
Polymer Sciences
Journal title
Journal of polymer science. Part A, Polymer chemistry → ACNP
ISSN journal
0887624X
Volume
32
Issue
6
Year of publication
1994
Pages
1131 - 1135
Database
ISI
SICI code
0887-624X(1994)32:6<1131:AOP-IO>2.0.ZU;2-1
Abstract
The isomerization of allyl ether to propenyl ether end groups in anion ically-polymerized poly (propylene oxide) was monitored by H-1 NMR spe ctroscopy. It was confirmed that the reaction followed a simple second -order rate law: -d[allyl]/dt = k2[ally][O-]. Values of k2 determined over the 90-130-degrees-C temperature range, indicated an activation e nergy of 116 kJ mol-1. (C) 1994 John Wiley & Sons, Inc.