Studies on microcapsules. VI. Effect of variations in polymerization condition on microcapsule size

Authors:
  • YSYoshimichi Shigeri
    Yoshimichi Shigeri
  • MKMasumi Koishi
    Masumi Koishi
  • TKTamotsu Kondo
    Tamotsu Kondo
  • MSMotoharu Shiba
    Motoharu Shiba
  • STSuiichi Tomioka
    Suiichi Tomioka
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Abstract
The effect of variations in polymerization condition on the size of microcapsules prepared by the interfacial polycondensation method was studied. Factors lowering the rate and degree of polymerization, such as a decrease in temperature or monomer concentration, were found to increase the microcapsule size. A mechanism was proposed for the formation of large microcapsules in the polycondensation step.