Anionic photoinitiation
AssigneeUniversity of Georgia Research Foundation, Inc.
InventorCharles R. Kutal
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Abstract
A method for the anionic photoinitiation of polymerization or crosslinking of a substrate by irradiating a mixture of a substrate and a photoinitiator, where the photoinitiator is an inorganic transition metal complex which releases on irradiation a polymerization initiating substance consisting essentially of an anionically charged nucleophile that initiates the polymerization or crosslinking reaction, under conditions that allow the anion to initiate polymerization.
Claims11
A method for polymerizing a monomer, or crosslinking or polymerizing an oligomer or crosslinking a polymer by anionic photoinitiation comprising irradiating a mixture of the monomer, oligomer, or polymer, which is selected from the group consisting of ethylene, 1,3-diene, styrene, .alpha.-methylstyrene, acrylate ester, methacrylate ester, acrylonitrile, methacrylonitrile, acrylamide, methacrylamide, aldehydes, ketones, N-carboxy-.alpha.-amino anhydrides, cyclic amides, cyclic esters, epoxides, and siloxanes, and an inorganic transition metal complex Pt(acac).sub.2, under irradiation conditions wherein the inorganic complex photochemically reacts to release an anionically charged nucleophile and said anionically charged nucleophile initiates a polymerization reaction of said monomer, or a crosslinking or polymerization reaction of said oligomer, or a crosslinking reaction of said polymer.
Dependencies are inferred from the claim text.