Method of preparing solubilized catalyst complex, the solubilized catalyst formulation, and method of catalytic olefin polymerization
AssigneeThe Board of Trustees of the University of Illinois
InventorsDamien Guironnet, Camille Boucher-Jacobs
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Abstract
The inventors have discovered a method of comprising formation of water soluble catalyst precursor by combining a Group 8 to Group 11 transition metal containing catalyst and a surfactant. The surfactant is characterized by the presence of a hydrophobic segment and a hydrophilic segment. It is believed that the surfactant replaces the labile ligand on the catalyst precursor structure by simple ligand substitution. The precursor is then contacted with one or more monoethylenically unsaturated monomers under polymerization conditions to form a polymer.
Claims14
A method comprising:
- combining an organic soluble Group 8 to Group 11 transition metal catalyst precursor, wherein the organic soluble catalyst precursor includes a chelating ligand and a labile ligand, with a surfactant in an aqueous solution to form a water soluble catalyst precursor.
The method of any of the previous claims, wherein the surfactant comprises a polyethylene glycol moiety and a hydrocarbon moiety, and, optionally, an anionic moiety.
The method of any one of the preceding claims, wherein the organic soluble catalyst precursor is an aromatic phosphinosulfonate palladium catalyst.
The method of any one of the preceding claims, wherein the organic soluble Group 8 to Group 11 transition metal catalyst precursor has the following formula:
- where M is a group 8 through group 11 transition metal, R1 is H or an alkyl of 1 to 4 carbon atoms, Ar is a substituted or unsubstituted aromatic, R is a hydrocarbon group of 1 to 12 carbon atoms, n is the number of occurrences of R and is 0, 1, or 2, L is a labile ligand.
An aqueous solution comprising a water soluble phosphinosulfonate Group 8 transition metal catalyst precursor having the formula structure:
- where M is a group 8 to group 11 transition metal, R1 is H or an alkyl of 1 to 4 carbon atoms, Ar is a substituted or unsubstituted aromatic, R is a hydrocarbon group of 1 to 12 carbon atoms, n is the number of occurrences of R and is 0, 1, or 2, and L is a surfactant.
Dependencies are inferred from the claim text.