| 摘要 |
A combined linear and nonlinear polymer (i.e., having a combined linear, branched and radial structure) P+PnD according to the present invention is represented by (P+PnD)-+Li, where P is a polymer of a monovinyl aromatic monomer or a conjugated diene monomer; PD is a nonlinear polymer having a combined linear, branched and radial structure due to a multifunctional compound D bonded to the polymer P; n is an integer ranging from 2 to 10 and represents the average number of bonds between the monovinyl aromatic or conjugated diene polymer P and the multifunctional compound D; and +Li represents a metal ion as a partner of the active anion (P+PnD)-. The combined linear and nonlinear polymer of the present invention, characterized by nonlinearity-related properties (i.e., low melting viscosity, low melting properties and high mechanical properties), can be used alone as a plastic material and freely introduced to different copolymer resins that are used as stiffening agents having a different property such as impact strength or thermal stability.
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