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Title: Method of polymerizing exo-methylene cyclic organic compounds using homogeneous ring-opening catalysts

Patent ·
OSTI ID:869225
; ;

The regiospecific (1,2-Me.sub.2 C.sub.5 H.sub.3).sub.2 ZrMe.sup.+ MeB(C.sub.6 F.sub.5).sub.3.sup.- mediated ring-opening polymerization of methylenecyclobutane and its copolymerization with ethylene to polyolefins of microstructure--{CH.sub.2 CH.sub.2 CH.sub.2 C(CH.sub.2)]--.sub.n and {--[CH.sub.2 CHR]--.sub.x [CH.sub.2 CH.sub.2 CH.sub.2 C(CH.sub.2)]--.sub.y }.sub.n' respectively, 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):
5,300,598
Application Number:
07/962,390
OSTI ID:
869225
Resource Relation:
Patent File Date: 1992 Oct 16
Country of Publication:
United States
Language:
English

References (5)

On the Ring-Opening Polymerization of Methylenecyclobutane journal May 1972
Radical polymerization of 3-substituted-1-methylenec yclobutanes journal August 1988
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
Polymerization of methylenecyclobutane obtaining isocauchouc (Polymérisation du méthylènecyclobutane obtention de l'isocaoutchouc) journal August 1971

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Related Subjects

method
polymerizing
exo-methylene
cyclic
organic
compounds
homogeneous
ring-opening
catalysts
regiospecific
2-me
zrme
mediated
polymerization
methylenecyclobutane
copolymerization
ethylene
polyolefins
microstructure-
chr
respectively
disclosed
organic compound
organic compounds
ring-opening polymerization
cyclic organic
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