✦ LIBER ✦

Zirconium bis-cyclopentadienyl compounds: An investigation into the influence of substituent effects on the ethene polymerisation behaviour of (CpR)2ZrCl2/MAO catalysts

✍ Scribed by Neil E. Grimmer; Neil J. Coville; Charles B. de Koning

Publisher: Elsevier Science
Year: 2002
Tongue: English
Weight: 157 KB
Volume: 188
Category: Article
ISSN: 1381-1169
DOI: 10.1016/s1381-1169(02)00342-4

No coin nor oath required. For personal study only.

✦ Synopsis

A comparative investigation into the ethene polymerisation behaviour of several mono-substituted metallocene catalysts ((CpR) 2 ZrCl 2 /MAO; R = H, Me, Et, i Pr, t Bu, SiMe 3 , CMe 2 Ph) was performed. The activity of the catalysts was found to be dependant on both steric (quantified using the Tolman cone angle, analytical solid angle and numerical solid angle measurement methods) and electronic effects (Hammett substituent parameters). The highest activity was found for the catalysts with R = Et and SiMe 3 .

📜 SIMILAR VOLUMES

The influence of steric and electronic e

The influence of steric and electronic effects of substituents on the cyclopentadienyl ring on the behaviour of (CpR)2TiCl2 and (CpR)CpTiCl2/Et3Al2Cl3 catalysts in polymerization of ethene.

✍ Petra C. Möhring; Natalie Vlachakis; Neil E. Grimmer; Neil J. Coville 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 784 KB