Polymerization of Methyl Methacrylate Initiated by Cobalt (II) Nitrate

질산코발트 (II)에 의한 Methyl Methacrylate의 중합

  • Jang-oo Lee (Department of Chemical Technology, Engineering College, Seoul National University) ;
  • Dong-ho Lee (Department of Chemical Technology, Engineering College, Seoul National University) ;
  • Tae-oan Ahn (Department of Chemical Technology, Engineering College, Seoul National University)
  • 이장우 (서울대학교 공과대학 공업화학과) ;
  • 이동호 (서울대학교 공과대학 공업화학과) ;
  • 안태완 (서울대학교 공과대학 공업화학과)
  • Published : 1975.12.30

Abstract

The polymerization of methyl methacrylate(MMA) initiated by cobalt (II) nitrate in tetrahydrofuran (THF) has been studied. From the results of kinetic studies, the overall polymerization rate (Rp) could be expressed as following; $R_p=k\;[cobalt(Ⅱ)\;nitrate]^{0.5}\;[MMA]^{1.5}$ By considering the effects of chelating agent on the polymerization rate, it could be assumed that the monomer, MMA might form a coordination complex with cobalt(II) nitrate. In the presence of radical inhibitor hydroquinone, the inhibition time was observed. And the apparent overall activation energy was calculated to be 14.0 kcal/mole.

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References

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