A process including contacting one or more monomers, at least one catalyst system, and a condensing agent including propane and isobutane under polymerizable conditions to produce a polyolefin polymer is provided.

A process including contacting one or more monomers, at least one catalyst system, and a condensing agent including propane and isobutane under polymerizable conditions to produce a polyolefin polymer is provided.

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.

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.

The present invention relates to a fluorine-containing alternating copolymer macromonomer and a synthesis method thereof. The synthesis method comprises steps of: subjecting a fluorine-containing alternating copolymer to a reduction reaction at 60-100° C. in an organic solvent in the presence of a reducing agent and a first catalyst to obtain a reduction product; in the presence of a second catalyst, reacting the reduction product with a mercapto-monohydric alcohol in an organic solvent at 60-100° C., to obtain a hydroxyl-terminated fluorine-containing alternating copolymer; and in the presence of a third catalyst, reacting the hydroxyl-terminated fluorine-containing alternating copolymer with an acrylic monomer or acryloyl chloride monomer at 0-30° C., to obtain the fluorine-containing alternating copolymer macromonomer. In the present invention, a fluorine-containing alternating copolymer macromonomer is initially synthesized from a fluorine-containing alternating copolymer through polymer modification.

Phosphine phosphonate and phenoxyphosphine ligands bearing polyethylene glycol (PEG) chains are used as described herein to produce heterobimetallic catalysts. The ligands can be metallated selectively with palladium or nickel and secondary metal ions to provide well-defined heterobimetallic compounds. These heterobimetallic complexes exhibit accelerated reaction rates and greater thermal stability in olefin polymerization compared to other catalysts.

Phosphine phosphonate and phenoxyphosphine ligands bearing polyethylene glycol (PEG) chains are used as described herein to produce heterobimetallic catalysts. The ligands can be metallated selectively with palladium or nickel and secondary metal ions to provide well-defined heterobimetallic compounds. These heterobimetallic complexes exhibit accelerated reaction rates and greater thermal stability in olefin polymerization compared to other catalysts.

A catalyst for olefin polymerization that contains a metal complex represented by general formula (C1) and a method for producing polyethylene, a copolymer of ethylene and an olefin having a polar group represented by general formula (1), or a copolymer of ethylene, an olefin having a polar group represented by general formula (1) and another monomer, using the aforementioned metal complex as a polymerization catalyst, wherein the symbols in formula (C1) and formula (1) are as defined in the specification. ##STR00001##

A catalyst for olefin polymerization that contains a metal complex represented by general formula (C1) and a method for producing polyethylene, a copolymer of ethylene and an olefin having a polar group represented by general formula (1), or a copolymer of ethylene, an olefin having a polar group represented by general formula (1) and another monomer, using the aforementioned metal complex as a polymerization catalyst, wherein the symbols in formula (C1) and formula (1) are as defined in the specification. ##STR00001##

A catalyst for olefin polymerization that contains a metal complex represented by general formula (C1) and a method for producing polyethylene, a copolymer of ethylene and an olefin having a polar group represented by general formula (1), or a copolymer of ethylene, an olefin having a polar group represented by general formula (1) and another monomer, using the aforementioned metal complex as a polymerization catalyst, wherein the symbols in formula (C1) and formula (1) are as defined in the specification. ##STR00001##