申请人:Denka Company Limited
公开号:EP3663324A1
公开(公告)日:2020-06-10
The present invention provides a block copolymer of an acrylate polymer and a chloroprene polymer, having a number average molecular weight of 110,000 or more, and suitable for industrial production and suitable for a rubber composition or a vulcanized product thereof.
A block copolymer including one or more blocks of an acrylate polymer and one or more blocks of a chloroprene polymer, wherein the number average molecular weight of the block copolymer is 110,000 or more, the number average molecular weight of the block of a chloroprene polymer is 80,000 or more in total, and the block copolymer has a functional group with a structure represented by the following chemical formula (1) or (2):
wherein in the chemical formula (1), R1 represents hydrogen, chlorine, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group or a substituted, or unsubstituted heterocyclyl group.
本发明提供了一种丙烯酸酯聚合物和氯丁二烯聚合物的嵌段共聚物,该嵌段共聚物的平均分子量为 110,000 或以上,适用于工业生产,并适用于橡胶组合物或其硫化产品。
一种嵌段共聚物,包括一个或多个丙烯酸酯聚合物嵌段和一个或多个氯丁二烯聚合物嵌段,其中嵌段共聚物的平均分子量为 110,000 或以上,氯丁二烯聚合物嵌段的平均分子量总计为 80,000 或以上,且嵌段共聚物具有由以下化学式(1)或(2)表示的结构的官能团:
其中在化学式(1)中,R1 代表氢、氯、取代或未取代的烷基、取代或未取代的烯基、取代或未取代的芳基或取代或未取代的杂环基。