Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
Letter
Photocontrol of ζ-Potential of Poly(styrene) Microspheres Prepared by Soap-free Emulsion Copolymerization
Hiroaki KishimotoMasaru WatanabeTomokazu IyodaKatsutoshi NagaiMasaru Nakagawa
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2006 Volume 35 Issue 6 Pages 598-599

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Abstract

Exposure to UV light at wavelengths of ≥254 nm caused poly(styrene) microspheres in deionized water to exhibit a negatively shifted ζ-potential value by generation of carboxyl groups due to photooxidation. Their ζ-potential value could be tuned simply by an exposure dose without a change in their average diameter.

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© 2006 The Chemical Society of Japan
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