Polymerization of cyclohexene oxide using yttrium isopropoxide and a bimetallic yttrium-aluminium isopropoxide as initiators

Authors
Thiam, M Spassky, N
Citation
M. Thiam et N. Spassky, Polymerization of cyclohexene oxide using yttrium isopropoxide and a bimetallic yttrium-aluminium isopropoxide as initiators, MACRO CH P, 200(9), 1999, pp. 2107-2110
Citations number
24
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR CHEMISTRY AND PHYSICS
ISSN journal
10221352 → ACNP
Volume
200
Issue
9
Year of publication
1999
Pages
2107 - 2110
Database
ISI
SICI code
1022-1352(199909)200:9<2107:POCOUY>2.0.ZU;2-M
Abstract
The polymerization of cyclohexene oxide (CHO) using yttrium isopropoxide an d a bimetallic yttrium-aluminium isopropoxide initiation system is describe d. The reaction proceeds in bulk at room temperature leading to 70% yield i n a few mins. High molecular weight polymers are obtained with a polydisper sity index around 2. The polymerization in toluene solution is slower but l eads to polymers with the same characteristics. Complete conversions can be obtained at low temperatures. NMR spectra of the resulting poly(cyclohexen e oxide) revealed an atactic structure.