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Title: Zirconium and hafnium-catalyzed polymerization of methylenecyclopropane

Patent ·
OSTI ID:870232

A polymer having a repeating unit of ##STR1## and a method for preparing it through Zr-catalyzed polymerization of methylenecyclopropane is disclosed.

Research Organization:
Northwestern Univ., Evanston, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-86ER13511
Assignee:
Northwestern University (Evanston, IL)
Patent Number(s):
5,480,952
Application Number:
08/399,390
OSTI ID:
870232
Resource Relation:
Patent File Date: 1995 Mar 06
Country of Publication:
United States
Language:
English

References (14)

Carbon-carbon activation at electrophilic d0/fn centers. Facile, regioselective .beta.-alkyl shift-based ring-opening polymerization reactions of methylenecyclobutane journal April 1993
Polymerization of methylenecyclobutane, synthesis of an isopolyisoprene journal March 1969
Vinyl Polymerization 175th Note†. Polymerization of methylenecyclobutanes (Vinylpolymerisation 175. Mitt.†. Polymerisation von methylencyclobutanen) Title in German journal
Facile C–H activation by lutetium–methyl and lutetium–hydride complexes journal January 1983
Cation-like homogeneous olefin polymerization catalysts based upon zirconocene alkyls and tris(pentafluorophenyl)borane journal April 1991
Methylenecyclopropane from Methallyl Chloride journal March 1969
On the Ring-Opening Polymerization of Methylenecyclobutane journal May 1972
Highly reactive organolanthanides. Systematic routes to and olefin chemistry of early and late bis(pentamethylcyclopentadienyl) 4f hydrocarbyl and hydride complexes journal December 1985
Palladium-catalyzed cyclizations of polyenynes. A palladium zipper journal October 1993
Radical polymerization of 3-substituted-1-methylenec yclobutanes journal August 1988
exo-Methylene-Functionalized Polyethylenes via Ring-Opening Ziegler Polymerization. Product Control in Organolanthanide-Catalyzed Methylenecyclopropane Polymerization/Copolymerization journal August 1994
Iso-rubber. Study of cyclization and isomerization parameters (L'isocaoutchouc. Etude des paramètres de cyclisation et d'isomérisation) Title in French journal October 1971
.beta.-Alkyl transfer in a lanthanide model for chain termination journal November 1982
Polymerization of methylenecyclobutane obtaining isocauchouc (Polymérisation du méthylènecyclobutane obtention de l'isocaoutchouc) journal August 1971