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Structural analysis and dielectric property of novel conjugated polycyanurates

Authors

  • Xiong-Yan Zhao,

    Corresponding author
    1. College of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, People's Republic of China
    2. Hebei Key Laboratory of Material Near-Net Forming Technology, Hebei University of Science and Technology, Shijiazhuang, People's Republic of China
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  • Ming-Zhu Wang,

    1. Hebei Province Analysis and Testing Research Centre, Hebei University of Science and Technology, Shijiazhuang, People's Republic of China
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  • Jiao-Qing Ji,

    1. College of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, People's Republic of China
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  • Tian-Heng Wang,

    1. College of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, People's Republic of China
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  • Fei Yang,

    1. College of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, People's Republic of China
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  • Juan-Min Du

    1. College of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, People's Republic of China
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Abstract

Structural characterizations reveal that the plasma polymerization of three cyanate ester monomers proceeded mainly via the opening of π-bonds of the cyanate ester functional groups and transforming them to a large π-conjugated structure, which is noticeably different from the conventional thermal or catalytic cyclotrimerization reaction of cyanate ester monomers. The dielectric properties of the resulting plasma thin films were evaluated and results show that the dielectric constant of the three polycyanurate thin films decreased with increasing frequency, while in contrast, the dielectric loss factor increased with the increasing frequency. POLYM. ENG. SCI., 54:812–817, 2014. © 2013 Society of Plastics Engineers

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