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ID 21455
file
creator
Okada, Mitsuhiro
Nakayama, Yuushou
subject
ethylene polymerization
nickel catalyst
polyethylene
NDC
Chemistry
abstract
A series of anilinonaphthoquinone-based nickel complexes, Ni(C10H5O2NAr)(Ph)(PPh3) (Ar = C6H3-2,6-Me (1c); Ar = C6H2-2,4,6-Me (2c); Ar = C6H3-2,6-Et (3c)), were synthesized and the structures of 1c-3c were confirmed by single crystal X-ray analyses. The anilinonaphthoquinone-ligated nickel complexes activated with B(C6F5)(3) showed high activities for ethylene polymerization at 40 degrees C under atmospheric pressure of ethylene and gave polyethylene with long chain branches and short chain branches. The activity of these systems was decreased by lowering polymerization temperature accompanied by increase in molecular weight. The number of the chain branches was also decreased with lowering polymerization temperature and increasing the bulkiness of the ligand.
journal title
Journal of Organometallic Chemistry
volume
Volume 692
issue
Issue 23
start page
5183
end page
5189
date of issued
2007-11
publisher
Elsevier Science SA
issn
0022-328X
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright(c) 2007 Elsevier Science SA
relation is version of URL
http://dx.doi.org/10.1016/j.jorganchem.2007.07.049
department
Graduate School of Engineering