Patent ID: 8871867
Filing Date: 2014-10-28
Classification: C08C

Abstract:
1. A method for manufacturing a terminal-modified conjugated diene-vinyl aromatic copolymer, comprising: adding an organic alkali metal initiator into a first mixture containing a conjugated diene monomer and a vinyl aromatic hydrocarbon monomer to obtain a conjugated diene-vinyl aromatic copolymer with active terminal, wherein the active terminal of the conjugated diene-vinyl aromatic copolymer is formed by the alkali metal initiator; and enabling the conjugated diene-vinyl aromatic copolymer with active terminal to react with a polysiloxane to obtain the terminal-modified conjugated diene-vinyl aromatic copolymer, wherein the polysiloxane is expressed as chemical formula (I) of: wherein, R1, R2, R3 and R5 are independently alkyl group with 1˜20 carbon atoms, R4 is selected from one of alkyl group, alkoxy group or hydroxyl group with 1˜5 carbon atoms, m is an integer of 2˜50, and n is an integer of 0˜50.