A functionalized polymer prepared by a process comprising the steps of preparing a pseudo-living polymer by polymerizing conjugated monomer with a lanthanide-based catalyst, and reacting the pseudo-living polymer with a functionalizing agent defined by the formula (I)
A-R
1
-Z (I)
where R
1
is a divalent bond or divalent organic group comprising from 0 to about 20 carbon atoms, A is a substituent that will undergo an addition reaction with a pseudo-living polymer, and Z is a substituent that will react or interact with silica or carbon black reinforcing fillers, with the proviso that A, R
1
, and Z are substituents that will not protonate a pseudo-living polymer.
一种功能化聚合物,其制备方法包括以下步骤:用
镧系催化剂聚合共轭单体,制备假活 性聚合物,并使假活性聚合物与由式(I)定义的功能化剂反应
A-R
1
-Z (I)
其中 R
1
是二价键或由 0 至约 20 个碳原子组成的二价有机基团,A 是会与假活聚合物发生加成反应的取代基,Z 是会与
二氧化硅或
炭黑增强填料发生反应或相互作用的取代基,但 A、R
1
和 Z 是不会使假生命聚合物发生质子化反应的取代基。