Abstract: A functionalized macromolecule includes a hydrogenated interpolymer portion, a non-hydrogenated polymer portion, and the radical of a functional coupling agent covalently bonded to and linking those portions. The functional group of the coupling agent exhibits interactivity with silica. The interpolymer can include vinyl aromatic mer and conjugated diene mer, with at least some of the latter, typically at least 50 mole percent, having been hydrogenated.

Abstract: A functionalized macromolecule includes a hydrogenated interpolymer portion, a non-hydrogenated polymer portion, and the radical of a functional coupling agent covalently bonded to and linking those portions. The functional group of the coupling agent exhibits interactivity with silica. The interpolymer can include vinyl aromatic mer and conjugated diene mer, with at least some of the latter, typically at least 50 mole percent, having been hydrogenated.

Abstract: A functionalized macromolecule includes a hydrogenated interpolymer portion, a non-hydrogenated polymer portion, and the radical of a functional coupling agent covalently bonded to and linking those portions. The functional group of the coupling agent exhibits interactivity with silica. The interpolymer can include vinyl aromatic mer and conjugated diene mer, with at least some of the latter, typically at least 50 mole percent, having been hydrogenated.

Abstract: A vulcanizable composition comprising rubber component, a filler, and a curing agent, where the rubber component includes a block copolymer of polybutadiene and polyisoprene, and where the block copolymer has a cis content of at least 90%.

Abstract: A vulcanizable composition comprising rubber component, a filler, and a curing agent, where the rubber component includes a block copolymer of polybutadiene and polyisoprene, and where the block copolymer has a cis content of at least 90%.

Abstract: Embodiments of the present disclosure are directed to functionalized copolymers produced by copolymerization of at least one conjugated diolefin monomer and at least one vinyl monomer, the functionalized copolymer including at least one functional group having silica reactive moieties, wherein the functionalized copolymer has a degree of hydrogenation of 75% to 98 mol % as measured using proton nuclear magnetic resonance spectroscopy (1H NMR). In one or more embodiments, the silane modifier may include an oxygen-containing moiety, wherein the oxygen atom of the oxygen-containing moiety may not be directly bonded with the silicon atom.

Abstract: A method of preparing a silane-functionalized polymer, the method comprising: preparing a polymerization system including a cis-1,4-polydiene by introducing a lanthanide-based catalyst and a conjugated diene monomer; and adding a hydrosilane compound to the polymerization system including a cis-1,4-polydiene.

Abstract: A vulcanizable composition comprising rubber component, a filler, and a curing agent, where the rubber component includes a block copolymer of polybutadiene and polyisoprene, and where the block copolymer has a cis content of at least 90%.

Abstract: A method of preparing a silane-functionalized polymer, the method comprising: preparing a polymerization system including a cis-1,4-polydiene by introducing a lanthanide-based catalyst and a conjugated diene monomer; and adding a hydrosilane compound to the polymerization system including a cis-1,4-polydiene.