MANUFACTURING METHOD OF A VINYL AROMATIC-CONJUGATED DIENE-BASED COPOLYMER HAVING A WIDE MOLECULAR WEIGHT DISTRIBUTION BY USING AN ORGANIC LITHIUM ADDITIVE AND A PYRIDINE-BASED ADDITIVE

摘要

PURPOSE: A manufacturing method of a high vinyl conjugated diene-based copolymer provides a high vinyl conjugated diene-based copolymer capable of remarkably improving the processability of a tire and increasing the compatibility with silica which is a reinforcing material for manufacturing the tire.;CONSTITUTION: A manufacturing method of a high vinyl conjugated diene-based copolymer includes a step of inputting an organic lithium compound into a mixture which consists of a non-polar solvent, a vinyl aromatic monomer, a conjugated diene monomer, and a pyridine-based compound and conducting a polymerization, or the manufacturing method of the vinyl conjugated diene-based copolymer includes a step of mixing a non-polar solvent, a vinyl aromatic monomer, a conjugated diene monomer, and a pyridine-based compound, inputting an organic lithium compound after increasing temperature, and conducting a polymerization; and a step of stopping the reaction by adding a polymerization terminator.;COPYRIGHT KIPO 2013