COMPOSITION FOR SEEDED POLYMERIZATION, A CONJUGATED DIENE COPOLYMER, AN MOLDED BODY, AND A METHOD FOR PREPARING THE SAME

A composition for seeded polymerization includes: a seed copolymer which has a compound having dithioate, a mercaptan compound, a first aromatic vinyl monomer, and a first conjugated diene monomer, and has an average particle diameter of 10-30 nm; a second aromatic vinyl monomer; and a second conjugated diene monomer.