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    • 8. 发明授权
    • Highly branched polycondensates
    • 高分支缩聚物
    • US06528612B1
    • 2003-03-04
    • US09937190
    • 2001-09-21
    • Axel BrennerAnnett König
    • Axel BrennerAnnett König
    • C08G6300
    • C08G83/005C08G63/20C08G64/14C08G69/26C08G69/44
    • A highly branched polycondensate is described. The polycondensate is prepared by polycondensating (a) monomers capable of polycondensation in the presence of (b) branching agents, wherein the branching agents are selected from polymers, oligomers consisting of 2 to 100 monomer units and dendritic polymers. The branching agents contain residues of monomers represented by the general formulas, A—R—Bx or Ax—R—B wherein A represents a —C(O)X group, X being hydroxyl, halogen, alkoxy or aralkoxy, each having 1 to 30 carbon atoms, B represents one of (i) an —OY group, Y being hydrogen, trialkyl silyl, alkyl or acyl, each having 1 to 30 carbon atoms, and (ii) an amino group, an ammonium halide or an alkyl carbamate having 1 to 8 carbon atoms, R is an organic aromatic, aliphatic-aromatic or aliphatic radical containing 1 to 25 carbon atoms, and x≧2. Also described are molded articles prepared from the highly branched polycondensate of the present invention.
    • 描述了高度支化的缩聚物。 缩聚物(a)在(b)支化剂存在下缩聚(a)能够缩聚的单体,其中支化剂选自聚合物,由2至100个单体单元和树枝状聚合物组成的低聚物。 支化剂含有由通式表示的单体的残基,其中A表示-C(O)X基,X为羟基,卤素,烷氧基或芳烷氧基,各自具有1至30个碳原子,B表示(i) -OY基,Y是氢,三烷基甲硅烷基,烷基或酰基,各自具有1至30个碳原子,和(ii)氨基,卤化铵或具有1至8个碳原子的氨基甲酸烷基酯,R是有机芳族 ,含有1至25个碳原子的脂族 - 芳族或脂族基团,x≥2。还描述了由本发明的高度支化缩聚物制备的模制品。