Blend of a graft copolymer and a second polymer miscible with sidechains of the graft copolymer

摘要

The present invention is directed to a polymer blend, the blend including a diene-based elastomer grafted with a substituted acrylamide polymer through a sulfur atom, and from 1 to 20 percent by weight of an additional polymer miscible with the substituted acrylamide polymer.

主权项

1. A polymer blend comprising a copolymer and an additional polymer, the copolymer comprising the structure
XY—Z]n where X is a polymer derived from a monomer comprising at least one conjugated diene monomer selected from the group consisting of isoprene and butadiene and optionally styrene; Z is a polymer capable of exhibiting a lower critical solution temperature (LCST); Y is a divalent group bonded to both X and Z, wherein Y is sulfur; and n is the number of Y—Z] groups bonded to X;
the additional polymer consisting of a polymer miscible with Z; wherein the polymer blend comprises from 1 to 20 weight percent of the additional polymer wherein the polymer blend is in the form of an article of manufacture selected from the group consisting of reinforced hoses, transmission belts, drive belts, air springs, conveyor belts, drive tracks, and shoe soles.