摘要:
Disclosed are a novel chain transfer agent having a trichloromethyl functional group bonded at an end thereof, an end-modified styrene-butadiene copolymer prepared by using the chain transfer agent, and an organic-inorganic composite obtained by mixing the end-modified styrene-butadiene copolymer with silica. The disclosed end-modified styrene-butadiene copolymer has a high affinity with silica because its end is modified with a hydrophilic chain transfer agent. Thus, the organic-inorganic composite including the mixture of the copolymer with silica is useful as a material for the manufacture of rubber products such as a tire, a sole, a rubber hose, or a rubber belt.
摘要:
Disclosed is a conjugated diene random copolymer having an alkoxysilane unit, which is prepared by subjecting a conjugated diene monomer, an aromatic vinyl monomer and an alkoxysilane monomer having a specific structure to emulsion polymerization, and in which the copolymer contains an alkoxysilane unit in the backbone thereof and is thus enhanced in the degree of dispersion and affinity to an inorganic reinforcing material such as carbon black or silica, and is useful as a rubber material for tires having superior mechanical and dynamic properties.