Method for the synthesis of copolymers for producing polymethacrylimides
    12.
    发明申请
    Method for the synthesis of copolymers for producing polymethacrylimides 审中-公开
    合成聚甲基丙烯酰亚胺共聚物的方法

    公开(公告)号:US20070142588A1

    公开(公告)日:2007-06-21

    申请号:US10568971

    申请日:2004-08-25

    IPC分类号: C08F120/00

    CPC分类号: C08F220/18 C08F220/54

    摘要: The invention relates to a method for producing polymethacrylimides in two steps: 1) radical copolymerization of (meth)acrylamides (A, (Me,H)HC=CHCONHR2) and alkyl(meth)acrylic esters (B) and optionally further ethylenically unsaturated monomers in the presence of an aqueous solvent. The monomers (A) include, in addition to acrylamide and methacrylamide, (meth)acrylamides that are substituted on their nitrogen group (R2<>H). The monomers (B) are the (meth)acrylic esters of secondary or tertiary alcohols, preferably tert. butylmethacrylate. 2) Thermal or catalytic reaction of the copolymers produced in 1) to polymethacrylimide or for R2<>H to N-substituted polymethacrylimides while alkenes are separated.

    摘要翻译: 本发明涉及以下两个步骤制备聚甲基丙烯酰胺的方法:1)(甲基)丙烯酰胺(A,(Me,H)HC = CHCONHR 2)和(甲基)丙烯酸烷基酯(B)和任选的其它烯属不饱和单体 在水溶剂的存在下。 单体(A)除了丙烯酰胺和甲基丙烯酰胺之外还包括在其氮基团(R 2 H)上被取代的(甲基)丙烯酰胺。 单体(B)是仲醇或叔醇的(甲基)丙烯酸酯,优选叔。 甲基丙烯酸丁酯 2)在分离烯烃时,在1)中产生的共聚物与聚甲基丙烯酰亚胺或R2