Photocontrol of zeta-potential of cationic polystyrene particles prepared by soap-free emulsion copolymerization

Hiroaki Kishimoto, Masaru Nakagawa, Tomokazu Iyoda, Masaru Watanabe, Katsutoshi Nagai

研究成果: Paper査読

抄録

We report the photo-oxidation method for preparing aqueous dispersions containing charge-photocontrollable cationic polystyrene particles with uniform diameter. The cationic polystyrene particles prepared by soap-free emulsion copolymerization had an average diameter of 195 nm and a zeta potential of +59 mV in aqueous solution containing 10 mmol/dm3 NaCI. When the aqueous dispersion containing the particles was irradiated with UV light, the zeta-potential was shifted negatively and the average diameter was maintained after UV exposure. FT-IR and elemental analysis suggested that carboxy groups were formed at a surface of the cationic polystyrene particles by photo-oxidation.

本文言語English
ページ数1
出版ステータスPublished - 2005 12 1
外部発表はい
イベント54th SPSJ Annual Meeting 2005 - Yokohama, Japan
継続期間: 2005 5 252005 5 27

Other

Other54th SPSJ Annual Meeting 2005
国/地域Japan
CityYokohama
Period05/5/2505/5/27

ASJC Scopus subject areas

  • 工学(全般)

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