Syndiotactic polypropene with MCM-41 supported metallocene [Me2C(Cp)(Flu)]ZrCl2

Authors
Kaminsky, W Strubel, C Lechert, H Genske, D Woo, SI
Citation
W. Kaminsky et al., Syndiotactic polypropene with MCM-41 supported metallocene [Me2C(Cp)(Flu)]ZrCl2, MACRO RAPID, 21(13), 2000, pp. 909-912
Citations number
17
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR RAPID COMMUNICATIONS
ISSN journal
10221336 → ACNP
Volume
21
Issue
13
Year of publication
2000
Pages
909 - 912
Database
ISI
SICI code
1022-1336(20000911)21:13<909:SPWMSM>2.0.ZU;2-D
Abstract
Mesoporous aluminosilicates - type MCM-41 - were used as carriers for syndi ospecific propene polymerisation using [Me2C(Cp)(Flu)]ZrCl2/MAO as catalyst . Alumina-free mesoporous MCM-41 reveals a far greater polymerisation activ ity than the analogous carrier containing alumina. The use of MCM-41 as car rier material at low propene concentration and high polymerisation temperat ure produces syndiotactic polypropene (sPP) with higher syndiotacticity and higher melting points than achieved when using a homogenous system or a su pported system based on spherical SiO2.