Metallocene-catalyzed propene polymerization:: From microstructure to kinetics.: Cs-symmetric ansa-zirconocenes

被引：39

作者：

Busico, V ^{[1
]}

Cipullo, R ^{[1
]}

Cutillo, F ^{[1
]}

Vacatello, M ^{[1
]}

Castelli, VV ^{[1
]}

机构：

[1] Univ Naples Federico II, Dipartimento Chim, I-80126 Naples, Italy

来源：

MACROMOLECULES | 2003年 / 36卷 / 12期

关键词：

D O I：

10.1021/ma034485y

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Highly syndiotactic propene polymerization in the presence of Cs-symmetric metallocene cations is much less obvious that it may appear based on asymmetry considerations alone. Effectively preventing the generation of m stereodefects requires the assistance of a counterion able to slow site epimerization more than monomer insertion, but also seconding chain-migratory insertion.

引用

页码：4258 / 4261

页数：4

共 37 条

[1] Activation of dimethyl zirconocene by methylaluminoxane (MAO) -: Size estimate for Me-MAO- anions by pulsed field-gradient NMR
Babushkin, DE
Brintzinger, HH
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (43) : 12869 - 12873
[2] BUDZELAAR PHM, COMMUNICATION
[3] Full assignment of the C-13 NMR spectra of regioregular polypropylenes: Methyl and methylene region
Busico, V
Cipullo, R
Monaco, G
Vacatello, M
Segre, AL
[J]. MACROMOLECULES, 1997, 30 (20) : 6251 - 6263
[4] GROWING CHAIN ISOMERIZATIONS IN METALLOCENE-CATALYZED ZIEGLER-NATTA 1-ALKENE POLYMERIZATION
BUSICO, V
CIPULLO, R
[J]. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1995, 497 (1-2) : 113 - 118
[5] Interfering effects of growing chain epimerization on metallocene-catalyzed isotactic propene polymerization
Busico, V
Brita, D
Caporaso, L
Cipullo, R
Vacatello, M
[J]. MACROMOLECULES, 1997, 30 (14) : 3971 - 3977
[6] Propene polymerization promoted by C-2-symmetric metallocene catalysts: From atactic to isotactic polypropene in consequence of an isotope effect
Busico, V
Caporaso, L
Cipullo, R
Landriani, L
Angelini, G
Margonelli, A
Segre, AL
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (08) : 2105 - 2106
[7] Busico V, 1999, MACROMOL RAPID COMM, V20, P116, DOI 10.1002/(SICI)1521-3927(19990301)20:3<116::AID-MARC116>3.0.CO
[8] 2-A
[9] Busico V, 2002, ANGEW CHEM INT EDIT, V41, P505, DOI 10.1002/1521-3773(20020201)41:3<505::AID-ANIE505>3.0.CO
[10] 2-J

← 1 2 3 4 →