TY - JOUR
T1 - Effect of co-catalyst system on α-olefin polymerization with rac- And meso-[dimethylsilylenebis(2,3,5-trimethylcyclopentadienyl)]zirconium dichloride
AU - Naga, Naofumi
AU - Mizunuma, Kooji
PY - 1997/7
Y1 - 1997/7
N2 - Propene, 1-butene and 1-hexene polymerization was conducted with a mixture of rac- and meso-[dimethylsilylenebis((2,3,5-tetramethyl-cyclopentadienyl)]zirconium dichloride (Me2Si(2,3,5-Me3Cp)2ZrCl2) (1) combined with methylaluminoxane (MAO), triethylaluminium (AlEt3)/triphenylcarbenium tetrakis(pentafluorophenyl)borate (Ph3CB(C6F5)4) (2) and triisobutylaluminium (AliBu3)/Ph3CB(C6F5)4, respectively, as co-catalyst systems. The ratios of polymerization rates Rp(rac)/Rp(meso) were changed with the combined cocatalysts. It was found that in the case of using trialkylaluminium/2 as co-catalyst Rp(rac)/Rp(meso) is lower than when using MAO in any kind of α-olefin polymerization.
AB - Propene, 1-butene and 1-hexene polymerization was conducted with a mixture of rac- and meso-[dimethylsilylenebis((2,3,5-tetramethyl-cyclopentadienyl)]zirconium dichloride (Me2Si(2,3,5-Me3Cp)2ZrCl2) (1) combined with methylaluminoxane (MAO), triethylaluminium (AlEt3)/triphenylcarbenium tetrakis(pentafluorophenyl)borate (Ph3CB(C6F5)4) (2) and triisobutylaluminium (AliBu3)/Ph3CB(C6F5)4, respectively, as co-catalyst systems. The ratios of polymerization rates Rp(rac)/Rp(meso) were changed with the combined cocatalysts. It was found that in the case of using trialkylaluminium/2 as co-catalyst Rp(rac)/Rp(meso) is lower than when using MAO in any kind of α-olefin polymerization.
UR - http://www.scopus.com/inward/record.url?scp=0000814810&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000814810&partnerID=8YFLogxK
U2 - 10.1002/marc.1997.030180708
DO - 10.1002/marc.1997.030180708
M3 - Article
AN - SCOPUS:0000814810
SN - 1022-1336
VL - 18
SP - 581
EP - 589
JO - Macromolecular Rapid Communications
JF - Macromolecular Rapid Communications
IS - 7
ER -