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Kinetics of methyl methacrylate grafting polymerization onto flaky aluminum powder

Authors

  • Hui Liu,

    Corresponding author
    1. College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China
    2. State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, People's Republic of China
    • College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China
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  • Rui Sun,

    1. Lvcui Middle School, Haizhu District, Guangzhou 510300, People's Republic of China
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  • Jianhong Yi,

    1. State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, People's Republic of China
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  • Hongqi Ye,

    1. College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China
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  • Xinde Tang,

    1. College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China
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  • Youfeng Li

    1. College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China
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Abstract

With ammonium persulfate (APS) as the initiator, the kinetics of methyl methacrylate (MMA) grafting polymerization onto flaky aluminum powder (Al) was studied. It was found that the experimental apparent grafting polymerization rate, Rg = KCmath image × Cmath image × Cmath image, was basically consistent with the theoretical result based on the theory of stable polymerization and equivalent activity, Rg = KCmath image × Cmath image × CMMA. The activation energy of grafting, homogenous, and total polymerization rate was calculated as 65.1, 35.4, and 37.5 kJ mol−1, respectively. It could be validated that the relationship among these activation energies accorded with the theoretical result of parallel reactions. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010

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