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    • 4. 发明授权
    • Polymeric polyamines and method for stabilizing silver nanoparticle by employing the same
    • 聚合多胺及其使用方法稳定银纳米颗粒
    • US08013048B2
    • 2011-09-06
    • US12140507
    • 2008-06-17
    • Jiang-Jen LinWei-Cheng TsaiYen-Chi HsuWen-Hsin Chang
    • Jiang-Jen LinWei-Cheng TsaiYen-Chi HsuWen-Hsin Chang
    • C08K3/08C08K5/3415C08K5/20C08K5/107C08K5/05C08F26/00
    • C08F26/00
    • The present invention discloses a polymeric polyamine which can be produced by polymerizing polyoxyalkylene-amine and a linker. The linker can be anhydride, carboxylic acid, epoxy, isocyanate or poly(styrene-co-maleic anhydride) copolymers (SMA). The present invention also discloses a method for stabilizing the Ag nanoparticles with polymeric polyamine. The polymeric polyamine serving as a stabilizer or dispersant is mixed with a water solution of silver salt and then a reducer is provided to reduce the silver ions and form an organic or a water solution of Ag nanoparticles. Water or solvent of this solution can be further removed through a heating, freezing or decompression process, and thus solid content of the solution can be increased. The concentrated solution also can be diluted to obtain a stable dispersion without aggregation.
    • 本发明公开了一种聚合多胺,其可通过聚合聚氧亚烷基 - 胺和连接体而制备。 接头可以是酐,羧酸,环氧,异氰酸酯或聚(苯乙烯 - 共 - 马来酸酐)共聚物(SMA)。 本发明还公开了一种用聚合多胺稳定Ag纳米颗粒的方法。 用作稳定剂或分散剂的聚合多胺与银盐水溶液混合,然后提供还原剂以还原银离子并形成Ag纳米颗粒的有机或水溶液。 该溶液的水或溶剂可以通过加热,冷冻或减压方法进一步除去,从而可以提高溶液的固体含量。 浓缩溶液也可以稀释以获得稳定的分散体而不凝聚。