Preparation of monodisperse, reactive hydrogel microspheres and their amphoterization

M. Kashiwabara, K. Fujimoto, H. Kawaguchi

研究成果: Article査読

39 被引用数 (Scopus)

抄録

Monodisperse, reactive hydrogel microspheres were prepared by precipitation polymerization of p-nitrophenyl acrylate (NPA) with acrylamide, methacrylic acid, and methylenebisacrylamide in ethanol. The size of microspheres was controlled by the monomer ratio. Some fraction of reactive ester decomposed during the polymerization. The reactive hydrogel microspheres were converted to amphoteric ones by the reaction of NPA units with diamine. The isoelectric point of the amphoteric microspheres was around 4.0, but it was different from the pH at which the microspheres have the minimum size or the most shrunken state. This was attributed to the uneven distribution of induced amine groups.

本文言語English
ページ(範囲)339-345
ページ数7
ジャーナルColloid and Polymer Science
273
4
DOI
出版ステータスPublished - 1995 4月 1

ASJC Scopus subject areas

  • 物理化学および理論化学
  • ポリマーおよびプラスチック
  • コロイド化学および表面化学
  • 材料化学

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