Index Catalog // Arch : Northwestern University Institutional Repository

Start Over

Filtering by: Keyword polymerization Subject Chemistry

1 - 2 of 2

List Gallery Masonry Slideshow

Catalyst Nuclearity Effects in Olefin Polymerization

Description:

The new binuclear organo-zirconium and -titanium metal complexes {2,7-di-[(2,6diisopropylphenyl)imino]-1,8-naphthalenediolato group 4 metal complexes {1,8-(O)2C10H4-2,7[CH=N(2,6-iPr2C6H3)]2}Zr2Cl6(THF)2 (FI2-Zr2) and {1,8-(O)2C10H4-2,7-[CH=N(2,6- i 2 t Pr2C6H3)]2}Ti2Cl6(THF)2 (FI -Ti2) are compared to the mononuclear analogues {3- Bu-2(O)C6H3CH=N(2,6-iPr2C6H3)}ZrCl3(THF) (FI-Zr1) and {3-tBu-2-(O)C6H3CH=N(2,6- i Pr2C6H3)}TiCl3(THF) (FI-Ti1), respectively, in ethylene polymerization and ethylene + olefin copolymerization processes. The comonomers studied...

Keyword:

methylenecycloalkane, phenoxyiminato, olefin, bimetallic, and polymerization

Subject:

Chemistry

Creator:

Michael R Salata

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/19/2018

Date Modified:

09/19/2018

Date Created:

2008-06-12

Resource Type:

Dissertation
Homogeneous Metallocene-Mediated Propylene Polymerization: Catalyst Symmetry, Ion-Pairing, and Counteranion Effects on Polymerization Kinetics, Selectivity, and Specificity

Description:

Counteranion effects on the rate and stereochemistry of propylene polymerization mediated by ion-pair complexes derived from dimethylzirconocene precatalysts activated with strongly Lewis-acidic perfluoroarylmetalloid cocatalyst/activators are shown to arise from the strength of the cation-anion interaction. This is quantified using CS-symmetric Me2C(Cp)(Flu)ZrMe2 (Cp = C5H4, &#951;5 cyclopentadienyl; Flu = C13H8, &#951;5...

Keyword:

cocatalyst, polyolefin, microstructure, ion pair, metallocene, and polymerization

Subject:

Chemistry

Creator:

John Andrew Stevens Roberts

Owner:

Scholarly Digital Publishing

Date Uploaded:

05/09/2018

Date Modified:

05/09/2018

Date Created:

2006-11-28

Resource Type:

Dissertation

LIBRARIES | ARCH

Limit your search

Type

Resource type

Creator

Keyword

Subject

Catalyst Nuclearity Effects in Olefin Polymerization

Homogeneous Metallocene-Mediated Propylene Polymerization: Catalyst Symmetry, Ion-Pairing, and Counteranion Effects on Polymerization Kinetics, Selectivity, and Specificity

Limit your search

Search Constraints

Search Results