New mononuclear and polynuclear perfluoroarylmetatate cocatalysts for stereospecific olefin polymerization

Ming Chou Chen; John A.S. Roberts; Tobin J. Marks

doi:10.1021/om0341698

New mononuclear and polynuclear perfluoroarylmetatate cocatalysts for stereospecific olefin polymerization

Ming Chou Chen, John A.S. Roberts, Tobin J. Marks

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

61 Scopus citations

Abstract

Mononuclear and polynuclear perfluoroarylborate, -aluminate, and -gallate cocatalysts for metal-locene-mediated olefin polymerization have been synthesized as trityl fluoride adducts of known perfluoroarylmetalloid cocatalysts. Propylene polymerization experiments using these species as cocatalysts with the C_s-symmetric precatalyst [Me₂C(Cp)(fluorenyl)]ZrMe₂ reveal a marked counteranion dependence of polymerization activity, product polymer syndiotacticity, and relative [m] and [mm] stereoerror abundance, with the polynuclear perfluoroaryl cocatalysts uniformly giving enhanced product polymer stereoregularity vs the neutral analogues.

Original language	English
Pages (from-to)	932-935
Number of pages	4
Journal	Organometallics
Volume	23
Issue number	5
DOIs	https://doi.org/10.1021/om0341698
State	Published - 1 Mar 2004

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title = "New mononuclear and polynuclear perfluoroarylmetatate cocatalysts for stereospecific olefin polymerization",

abstract = "Mononuclear and polynuclear perfluoroarylborate, -aluminate, and -gallate cocatalysts for metal-locene-mediated olefin polymerization have been synthesized as trityl fluoride adducts of known perfluoroarylmetalloid cocatalysts. Propylene polymerization experiments using these species as cocatalysts with the Cs-symmetric precatalyst [Me2C(Cp)(fluorenyl)]ZrMe2 reveal a marked counteranion dependence of polymerization activity, product polymer syndiotacticity, and relative [m] and [mm] stereoerror abundance, with the polynuclear perfluoroaryl cocatalysts uniformly giving enhanced product polymer stereoregularity vs the neutral analogues.",

author = "Chen, {Ming Chou} and Roberts, {John A.S.} and Marks, {Tobin J.}",

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T1 - New mononuclear and polynuclear perfluoroarylmetatate cocatalysts for stereospecific olefin polymerization

AU - Chen, Ming Chou

AU - Roberts, John A.S.

AU - Marks, Tobin J.

PY - 2004/3/1

Y1 - 2004/3/1

N2 - Mononuclear and polynuclear perfluoroarylborate, -aluminate, and -gallate cocatalysts for metal-locene-mediated olefin polymerization have been synthesized as trityl fluoride adducts of known perfluoroarylmetalloid cocatalysts. Propylene polymerization experiments using these species as cocatalysts with the Cs-symmetric precatalyst [Me2C(Cp)(fluorenyl)]ZrMe2 reveal a marked counteranion dependence of polymerization activity, product polymer syndiotacticity, and relative [m] and [mm] stereoerror abundance, with the polynuclear perfluoroaryl cocatalysts uniformly giving enhanced product polymer stereoregularity vs the neutral analogues.

AB - Mononuclear and polynuclear perfluoroarylborate, -aluminate, and -gallate cocatalysts for metal-locene-mediated olefin polymerization have been synthesized as trityl fluoride adducts of known perfluoroarylmetalloid cocatalysts. Propylene polymerization experiments using these species as cocatalysts with the Cs-symmetric precatalyst [Me2C(Cp)(fluorenyl)]ZrMe2 reveal a marked counteranion dependence of polymerization activity, product polymer syndiotacticity, and relative [m] and [mm] stereoerror abundance, with the polynuclear perfluoroaryl cocatalysts uniformly giving enhanced product polymer stereoregularity vs the neutral analogues.

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U2 - 10.1021/om0341698

DO - 10.1021/om0341698

M3 - 期刊論文

AN - SCOPUS:1542752630

VL - 23

SP - 932

EP - 935

JO - Organometallics

JF - Organometallics

SN - 0276-7333

IS - 5

ER -

New mononuclear and polynuclear perfluoroarylmetatate cocatalysts for stereospecific olefin polymerization

Abstract

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