ジエチルジチオカルバミン酸亜鉛塩によるフェニルグリシジルエーテルの重合

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タイトル別名
  • Polymerization of Phenyl Glycidyl Ether by Zinc Diethyldithiocarbamate
  • ジエチルジチオカルバミンサン アエンエン ニヨル フェニルグリシジルエーテル

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抄録

In order to elucidate the curing reaction of epoxy resin with zinc diethyldithiocarbamate (I), the bulk and solution (in methanol or toluene) polymerization of phenyl glycidyl ether (II), a model compound of epoxy resin, by I was investigated kinetically. The rate of bulk polymerization is expressed by the following equation:<BR>-d [PGE] /dt=k3 [II] [I] 2<BR>The activation energy and the activation entropy are 13.4 kcal/mol and -25 cal·mol-1·deg-1, respectively. The rate constant for the polymerization in methanol is larger and that in toluene is smaller than the value for the bulk polymerization. In the polymerization of II by various zinc dithiocarbamate, the rate increases with decreasing the size of group attached on the amino group. It is suggested that the ring-opening reaction of the epoxide proceeds through an SN2 mechanism in which N atom and Zn atom in I interact with the epoxy ring simultaneously to form a cyclic complex.

収録刊行物

  • 高分子論文集

    高分子論文集 36 (3), 135-139, 1979

    公益社団法人 高分子学会

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