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    • 3. 发明授权
    • Hyperbranched polymer and process for production thereof
    • 超支化聚合物及其生产方法
    • US08153744B2
    • 2012-04-10
    • US12310804
    • 2007-09-04
    • Hiroki TakemotoMasaaki OzawaKoji Ishizu
    • Hiroki TakemotoMasaaki OzawaKoji Ishizu
    • C08F212/08C08F28/02C08F2/46C08F212/06C08F28/00
    • C08F20/38C08F2/38C08F2/48C08F212/14C08F220/38C08F2438/03C08L101/005
    • There is provided a novel hyperbranched polymer in which the refractive index is precisely controlled while retaining its hyperbranched structure, and a method for producing the hyperbranched polymer. Further, there is also provided an optically and thermally stable novel hyperbranched polymer in which the desired refractive index is precisely controlled, and a method for producing the hyperbranched polymer. The hyperbranched polymer has, as a branched structure, a repeating unit structure produced from two dithiocarbamate compounds each having a vinyl structure, at the polymerization initiation site having a vinyl structure. A specific example of the hyperbranched polymer can be produced by subjecting to a living radical polymerization N,N-diethyldithiocarbamylmethylstyrene in the presence of N,N-diethyldithiocarbamylethyl methacrylate.
    • 提供了一种新颖的超支化聚合物,其中折射率被精确地控制,同时保持其超支化结构,以及制备超支化聚合物的方法。 此外,还提供了光学和热稳定的新型超支化聚合物,其中精确控制所需的折射率,以及制备超支化聚合物的方法。 超支化聚合物作为支链结构具有由具有乙烯基结构的两个二硫代氨基甲酸酯化合物产生的重复单元结构,在聚合引发部位具有乙烯基结构。 超支化聚合物的具体实例可以通过在N,N-二乙基二硫代氨基甲酰基乙基甲基丙烯酸酯的存在下进行活性自由基聚合N,N-二乙基二硫代氨基甲酰基苯乙烯来制备。