Saturation of Polymer Yield during Postpolymerization of γ-Ray Irradiated 2-Amino-4-<I>N</I>-methylanilino-6-isopropenyl-1, 3, 5-triazine

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  • ２‐アミノ‐４‐Ｎ‐メチルアニリノ‐６‐イソプロペニル‐１，３，５‐トリアジンのγ線後重合における重合率の飽和
  • 2 アミノー4 N メチルアニリノー6 イソプロペニルー1 3 5 トリアジン

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Description

The postpolymerization of 2-amino-4-N-methylanilino-6-isopropenyl-1, 3, 5-triazine (AMIT) irradiated in glassy-state with γ-ray of 60Co at -78°C was investigated. The DSC of AMIT irradiated in glassy-state showed a glass-transition temperature at 16°C and an exothermic peak due to polymerization at temperature near 41°C. This fact shows that the active species are trapped in the glass without causing polymerization until the glass-transition temperature is reached. The post-polymerization at 30-110°C of samples irradiated at -78°C gave polymers in saturated yields which depend on the polymerization temperature. It is shown by the measurement of ESR spectra and Gordon-Taylor's plot that a cause of the saturation of the polymer yield is not the disappearance of the active species but the glass formation of the polymer and monomer mixture during the postpolymerization.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 34 (3), 173-177, 1977

    The Society of Polymer Science, Japan

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