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Title: Catalysts and methods for ring opening metathesis polymerization

The present invention, among other things, provides highly syndiotactic poly(dicyclopentadiene) and/or hydrogenated poly(dicyclopentadiene), compositions thereof, and compounds and methods for preparing the same. In some embodiments, a provided compound is a compound of formula I, II or III. In some embodiments, a provided method comprises providing a compound of formula I, II or III.
Inventors:
;
Issue Date:
OSTI Identifier:
1349729
Assignee:
Massachusetts Institute of Technology CHO
Patent Number(s):
9,611,347
Application Number:
14/627,802
Contract Number:
FG02-86ER13564
Resource Relation:
Patent File Date: 2015 Feb 20
Research Org:
Massachusetts Institute of Technology, Cambridge, MA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Other works cited in this record:

Dicyclopentadiene polymer containing elastomer
patent, April 1987

Tungsten oxo alkylidene complexes for Z selective olefin metathesis
patent, July 2015

Syndioselective Ring-Opening Metathesis Polymerization of endo-Dicyclopentadiene with Tungsten Complexes Having Imido Ligands: Development of Crystalline Syndiotactic Hydrogenated Poly(endo-dicyclopentadiene)
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Five-Coordinate Rearrangements of Metallacyclobutane Intermediates during Ring-Opening Metathesis Polymerization of 2,3-Dicarboalkoxynorbornenes by Molybdenum and Tungsten Monoalkoxide Pyrrolide Initiators
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Synthesis of cis,syndiotactic ROMP Polymers Containing Alternating Enantiomers
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Ring-opening polymerization of endo and exo-dicyclopentadiene and their 7,8-dihydro derivatives
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Hydrogenated Ring-Opened Poly(endo-dicyclopentadiene)s Made via Stereoselective ROMP Catalyzed by Tungsten Complexes: Crystalline Tactic Polymers and Amorphous Atactic Polymer
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Stereospecific Ring-Opening Metathesis Polymerization of endo-Dicyclopentadiene by Schrock–Hoveyda Catalyst and Novel Mo- and W-based Complexes. Development of Crystalline Hydrogenated Poly(endo-dicyclopentadiene)
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Z-Selective Ring-Opening Metathesis Polymerization of 3-Substituted Cyclooctenes by Monoaryloxide Pyrrolide Imido Alkylidene (MAP) Catalysts of Molybdenum and Tungsten
journal, August 2013
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Regio- and Stereoselective Ring-Opening Metathesis Polymerization of 3-Substituted Cyclooctenes
journal, March 2011
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