The block copolymers according to the invention which are based on conjugated diolefins and polar monomers and are prepared in the presence of catalysts based on the rare earth metals have a high cis-1,4 content in the polydiene block and, because of their polar polymer part and their non-polar diene polymer part, can be used as agents which impart compatibility in the preparation of vulcanizates with a filler content for the production of tires and tire components, as a filler in the preparation of such vulcanizates, and as a blend component in the preparation of thermoplastic elastomers or in the modification of thermoplastics.
本发明的嵌段共聚物以共轭二烯烃和极性单体为基础,在稀土
金属催化剂存在下制备,在聚二烯嵌段中具有较高的顺式-1,4 含量,由于其极性聚合物部分和非极性二烯聚合物部分、在制备含有填充物的
硫化胶(用于生产轮胎和轮胎部件)时,可用作增强相容性的 剂;在制备此类
硫化胶时,可用作填充物;在制备热塑性弹性体或改性热塑性塑料 时,可用作混合组分。