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Title: Metal catalyzed synthesis of hyperbranched ethylene and/or .alpha.-olefin polymers

Abstract

Oily hyperbranched polymers derived from ethylene, propylene, butene and/or a C.sub.5 -C.sub.24 .alpha.-olefin, and a method for their synthesis, are disclosed. The polymers have non-regular microstructures and are characterized by a ratio ({character pullout})of methyl hydrogens centered around 0.85 ppm on the 1H-NMR spectra of the polymers relative to total aliphatic hydrogens of from about 0.40 to about 0.65 for polymers derived from ethylene or butene, and a ratio ({character pullout})of from greater than 0.50 to about 0.65 for polymers derived from propylene. A method for grafting hyperbranched polymers derived from ethylene, propylene, butene and/or a C.sub.5 -C.sub.24 .alpha.-olefin onto aromatic rings in organic molecules and polymers, and the resulting grafted materials, are also disclosed. The hyperbranched polymers and grafted materials are useful, for example, as lubricants and lubricant additives.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Pennsylvania State University, University, PA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
874058
Patent Number(s):
6303717
Application Number:
09/018,048
Assignee:
The Penn State Research Foundation University Park PA (University Park, PA)
Patent Classifications (CPCs):
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
DOE Contract Number:  
FG02-84ER13295
Resource Type:
Patent
Resource Relation:
Patent File Date: 1998 Feb 03
Country of Publication:
United States
Language:
English
Subject:
/526/502/

Citation Formats

Sen, Ayusman, Kim, Jang Sub, Pawlow, James H., Murtuza, Shahid, Kacker, Smita, and Wojcinski, III, Louis M. Metal catalyzed synthesis of hyperbranched ethylene and/or .alpha.-olefin polymers. United States: N. p., 2001. Web.
Sen, Ayusman, Kim, Jang Sub, Pawlow, James H., Murtuza, Shahid, Kacker, Smita, & Wojcinski, III, Louis M. Metal catalyzed synthesis of hyperbranched ethylene and/or .alpha.-olefin polymers. United States.
Sen, Ayusman, Kim, Jang Sub, Pawlow, James H., Murtuza, Shahid, Kacker, Smita, and Wojcinski, III, Louis M. Mon . "Metal catalyzed synthesis of hyperbranched ethylene and/or .alpha.-olefin polymers". United States. https://www.osti.gov/servlets/purl/874058.
@article{osti_874058,
title = {Metal catalyzed synthesis of hyperbranched ethylene and/or .alpha.-olefin polymers},
author = {Sen, Ayusman and Kim, Jang Sub and Pawlow, James H. and Murtuza, Shahid and Kacker, Smita and Wojcinski, III, Louis M.},
abstractNote = {Oily hyperbranched polymers derived from ethylene, propylene, butene and/or a C.sub.5 -C.sub.24 .alpha.-olefin, and a method for their synthesis, are disclosed. The polymers have non-regular microstructures and are characterized by a ratio ({character pullout})of methyl hydrogens centered around 0.85 ppm on the 1H-NMR spectra of the polymers relative to total aliphatic hydrogens of from about 0.40 to about 0.65 for polymers derived from ethylene or butene, and a ratio ({character pullout})of from greater than 0.50 to about 0.65 for polymers derived from propylene. A method for grafting hyperbranched polymers derived from ethylene, propylene, butene and/or a C.sub.5 -C.sub.24 .alpha.-olefin onto aromatic rings in organic molecules and polymers, and the resulting grafted materials, are also disclosed. The hyperbranched polymers and grafted materials are useful, for example, as lubricants and lubricant additives.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}

Works referenced in this record:

[η3-methallyl-nickel-dad]PF6 complex: new catalyst precursor for ethylene polymerization
journal, September 1997


New Pd(II)- and Ni(II)-Based Catalysts for Polymerization of Ethylene and .alpha.-Olefins
journal, June 1995