Photocatalyzed ring-opening polymerization of 1,1,3,3-tetramethyl-1,3-disilacyclobutane

Authors
Wu, XS Neckers, DC
Citation
Xs. Wu et Dc. Neckers, Photocatalyzed ring-opening polymerization of 1,1,3,3-tetramethyl-1,3-disilacyclobutane, MACROMOLEC, 32(19), 1999, pp. 6003-6007
Citations number
27
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULES
ISSN journal
00249297 → ACNP
Volume
32
Issue
19
Year of publication
1999
Pages
6003 - 6007
Database
ISI
SICI code
0024-9297(19990921)32:19<6003:PRPO1>2.0.ZU;2-0
Abstract
Photocatalyzed ring-opening polymerization of 1,1,3,3-tetramethyl-1,3-disil acyclobutane (TMDSCB) by Pt(acac)(2) is reported. Excellent conversion and high molecular weight polymers are produced in the absence of O-2. Inhibiti on experiments reveal the coexistence of both homogeneous and heterogeneous catalytic species. The relative activity of these is discussed and a tenta tive polymerization mechanism proposed. Pt colloid is proved to be the hete rogeneous catalyst by a TEM study.