Functional styrene-butadiene copolymer
A functional styrene-butadiene copolymer is disclosed. More specifically, the copolymer is prepared by radical polymerization of a styrene monomer, a butadiene monomer and an epoxy acrylate monomer in an emulsion state and ring-opening of the resultant styrene-butadiene-epoxy acrylate copolymer. When blended with silica, the disclosed copolymer provides excellent wet stopping performance and superior wear resistance. Therefore, it can be usefully applied for industrial materials including fuel-efficient tires, snow tires, belts, hoses, etc.
1. A functional styrene-butadiene copolymer for a silica composite obtained by blending with silica, represented by Chemical Formula 2:
wherein R 1 represents hydrogen or methyl, o=0.38, p=0.57 and q=0.05 by weight ratio, o+p+q=1, and X is hydroxyl.
2. A silica composite obtained by blending the styrene-butadiene copolymer according to claim 1 with silica.
3. The composite according to claim 2 , which is an industrial material for tires, hoses or belts.