HETEROGENEOUS CATALYSIS FOR RING-OPENING ANIONIC OLIGOMERIZATION

Authors
HAMAIDE T SPITZ R LETOURNEUX JP CLAVERIE J GUYOT A
Citation
T. Hamaide et al., HETEROGENEOUS CATALYSIS FOR RING-OPENING ANIONIC OLIGOMERIZATION, Macromolecular symposia, 88, 1994, pp. 191-200
Citations number
22
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular symposia → ACNP
ISSN journal
10221360
Volume
88
Year of publication
1994
Pages
191 - 200
Database
ISI
SICI code
1022-1360(1994)88:<191:HCFRAO>2.0.ZU;2-#
Abstract
New heterogeneous catalysts for ring opening oligomerization are obtai ned by grafting alkyl aluminium moieties on silica. Adding alcohol in excess causes the formation of aluminium alkoxides and allows the cata lytic mode, because of a rapid exchange reaction between the grafted a ctive centers and the free alcohols present in the medium. All the pol ymer chains are end-capped by these alcohol molecules, which give func tionalized oligomers.