| 摘要 |
A process for polymerization of a polymer containing monomeric units derived from a styrene monomer and a 1,3-butadiene monomer includes polymerizing the monomeric units in the presence of an initiator, a first polar agent, and a second polar agent. The first polar agent includes a structure (1):
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ R 1' R 2' N-Q-NR 3' R 4' €ƒ€ƒ€ƒ€ƒ€ƒ(I);
and the second polar agent comprises a structure (II):
R 1' , R 2' , R 3' , and R 4' are each independently selected from the group consisting of an alkyl group and hydrogen; Q contains an alkylene group; R 1 and R 2 are each independently an alkyl group; and R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are each independently selected from the group consisting of an alkyl group and hydrogen. Polymers prepared by the above process are described, as are compositions containing such a polymer, and articles containing at least one component formed from such a composition. |
