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    • 7. 发明公开
    • A process for the preparation of a block copolymer comprising a first polyolefin block and a second polymer block as well as the products obtained therefrom
    • 一种用于产生具有第一聚烯烃和第二聚合物嵌段和衍生产品的嵌段共聚物的方法
    • EP3034546A1
    • 2016-06-22
    • EP14198482.3
    • 2014-12-17
    • SABIC Global Technologies B.V.
    • Bouyahyi, MiloudDuchateau, RobertJasinska-Walc, Lidia
    • C08G81/02C08F4/28C08F8/06C08G63/08C08G63/82C08G64/30
    • The present invention relates to a cascade process for the preparation of a block copolymer comprising a first type of polyolefin block and at least one type of second polymer block. The process according to the present invention involves the following consecutive steps:
      A) polymerizing at least one type of olefin monomer using a catalyst system to obtain a first polyolefin block containing a main group metal on at least one chain end; the catalyst system comprising:
      i) a metal catalyst or metal catalyst precursor comprising a metal from Group 3-10 of the IUPAC Periodic Table of elements; and
      ii) at least one type of chain transfer agent; and
      iii) optionally a co-catalyst;
      B) reacting the first polyolefin block containing a main group metal on at least one chain end obtained in step A) with at least one type of oxidizing agent to obtain a first polyolefin block containing at least one main group metal-functionalized oxidized chain end; and
      C) forming at least one second polymer block on the first polyolefin block, wherein as a catalytic initiator the main group metal-functionalized oxidized chain end of the first polyolefin block obtained in step B) is used.
    • 本发明涉及一种用于一嵌段共聚物,其包括第一类型的聚烯烃嵌段和至少一种类型的第二聚合物嵌段的制备中的级联过程。 过程gemäß到本发明涉及以下连续的步骤:A)聚合至少一种类型的使用的催化剂体系以获得第一聚烯烃嵌段在至少一个链末端含主族金属烯烃单体; 该催化剂体系包含:i)金属或金属催化剂的催化剂前体包括从第3族的金属的元件的IUPAC周期表的第10; 和ii)至少一种类型的链转移剂; 和iii)任选的助催化剂; B)反应的第一聚烯烃嵌段含在至少一个链端在步骤A中获得的主族金属),具有至少一种类型的氧化剂,以获得第一聚烯烃嵌段含有至少一种主族金属官能化氧化链端的; 和C)形成第一聚烯烃嵌段上的至少一种第二聚合物嵌段,worin作为催化引发剂在步骤B中得到的第一聚烯烃嵌段的主族金属官能化氧化链端)被使用。