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Preparation and Characterization of Poly(acrylamide)/Silica Nanocomposite gels

Lili WuLingzi ZengHaibo ChenChaocan Zhang

School of Materials Science and Engineering,Wuhan University of Technology

摘要:A series of PAM/silica nanocomposite(NC) gels using silica sol as the inorganic component were prepared by in situ free-radical polymerization.The addition of silica sol was first used to bring silica nanoparticles to form organic(polymer)/inorganic system.Results from the swelling experiment indicated that the effect of silica particle was nevertheless rather complex as polymer/particle binding.Additionally,it revealed that the swelling ratio of the NC gels with a certain silica content increased with the increasing pH value.Moreover,it exhibited absorption of the polymer onto silica because the chemical cross-linked PAM has changed to the organic/inorganic system.The spectroscopic results showed that the silica nanoparticles formed by silica sol promoted high degree of attachment to the polymer chain.The AFM micrographs displayed that silica particles were of nano degree and in the monodisperse.Both evidences proved that the organic/inorganic system was effectively formed through the addition of silica sol.
会议名称:

The 1st International Congress on Advanced Materials 2011

会议时间:

2011-05-13

会议地点:

中国山东济南

  • 专辑:

    工程科技Ⅰ辑

  • 专题:

    化学

  • 分类号:

    O641.4

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