High temperature bulk metathesis polymerization
AssigneeUniversity of Florida Research Foundation, Inc.
InventorsKenneth B. Wagener, Julia Grace Pribyl, Michael H. Bell
Life of this patent
Estimating the term…
Abstract
A method of carrying out a metathesis reaction includes the combination of at least one alkene or non conjugated diene with a Ruthenium-based catalyst with an cyclic(alkyl)(amino)carbene ligand to form a reaction mixture, heating the reaction mixture to a temperature of 100° C. or greater in the absence of a solvent in bulk conditions, and mechanically stirring the reaction mixture. The reaction can be an ADMET, ROMP, a metathesis ring-closure or an olefin exchange reaction.
Claims11
A method for producing a polymer via metathesis polymerization, the method comprising:
- forming a polymerization mixture, the polymerization mixture comprising a Ruthenium-based catalyst comprising a cyclic (alkyl) (amino) carbene ligand, having the structure:
- heating the polymerization mixture to a temperature greater than the melting point of the polymer in bulk conditions to form a molten polymerization mixture;
- and
- performing intensive mixing on the molten polymerization mixture to produce the polymer,
- wherein the polymer has a weight average molecular weight of at least about 10,000 Da within about 3 hours, and
- wherein the melting point of the polymer is 100° C. or greater.
Dependencies are inferred from the claim text.