Premium
A novel method to prepare a metallocene adduct catalyst with low moisture sensitivity
Author(s) -
Wang Hongtao,
Chen Wei,
Zheng Gang,
Li Hangquan
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.24248
Subject(s) - adduct , moisture , catalysis , polymerization , polymer chemistry , materials science , metallocene , ethylene , intermolecular force , x ray photoelectron spectroscopy , chemical engineering , chemistry , organic chemistry , molecule , composite material , polymer , engineering
A novel method to prepare a three‐constituent adduct of metallocene Cp 2 MCl 2 /2LiCl/THF is proposed. The adduct catalyst can be easily prepared without salt separation and recrystallization and possessed a low moisture sensitivity and a high stability. Measurements with NMR and XPS showed that specific intermolecular interactions exist among the three components, by which the stability of the adduct was increased. The activity of the catalyst was evaluated in the polymerization of ethylene. The kinetic behavior was also studied. It showed a high reservation of activity even when exposed to a high relative humidity for hours. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 3944–3948, 2006