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    Block copolymer for production of mouldings, film, fibres and foam, contains blocks derived from cyclic conjugated diene monomer and blocks with a high content of 1,4 linkages derived from linear diene
    2.
    发明专利
    Block copolymer for production of mouldings, film, fibres and foam, contains blocks derived from cyclic conjugated diene monomer and blocks with a high content of 1,4 linkages derived from linear diene 未知

    公开(公告)号：DE10309565A1

    公开(公告)日：2004-09-16

    申请号：DE10309565

    申请日：2003-03-04

    Applicant: BASF AG

    Inventor： HE JUNPO ,  KNOLL KONRAD ,  MC KEE GRAHAM EDMUND

    IPC: C08F297/02 ,  C08F297/06

    Abstract: Block copolymers (I) containing block(s) (A) derived from cyclic conjugated diene monomers and block(s) (B) derived from linear diene monomers, in which the content of 1,4-linkages in at least one block (B) is at least 80% based on the sum of 1,2-, 1,4- and 3,4-linkages. Independent claims are also included for (1) bifunctional initiator compositions (Z) obtained by reacting a metal-organic initiator M with a coupling agent (Y) to form a bifunctional initiator M2Y, reacting M2Y with a small amount of linear diene monomer to form an activated initiator (M*)2Y and repeating this step one or more times to form (Z) (2) a method (M1) as described above for the production of (Z) (3) a method (M2) for the production of (I) by anionic polymerisation, in which block (B) is polymerised first in presence of an initiator, then a complex-former is added and block(s) (A) and/or other block(s) (C) are polymerised (4) moulded products, film, fibres and foam made from (I).

    5.
    发明专利
    未知

    公开(公告)号：DE19858098A1

    公开(公告)日：2000-06-21

    申请号：DE19858098

    申请日：1998-12-16

    Applicant: BASF AG

    Inventor： YANG YULIANG ,  HE JUNPO ,  CAO JIZHUANG ,  CHEN JINGMING ,  LI CHENGMING

    IPC: C08F2/38 ,  C08F4/00 ,  C08F4/32 ,  C08F4/34 ,  C08F293/00 ,  C08F12/00 ,  C08F20/18 ,  C08F20/42 ,  C08F22/00 ,  C08F36/04

    Abstract: The invention relates to a method for the living free-radical polymerization of one or more ethylenically unsaturated monomers by means of at least one free-radical polymerization initiator and in the presence of one or more stable N-oxyl radicals, at least one of which has polymerizable double bonds. The invention also relates to polymers which are obtained according to this method and have a polydispersity index (PDI) of between 1.0 and 1.8, and to the use of stable N-oxyl radicals with polymerizable double bonds in the living free-radical polymerization of one or more different ethylenically unsaturated monomers.

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