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Colloid and Polymer Science

, Volume 277, Issue 10, pp 905–913 | Cite as

Characterization of cross-linked poly(N-isopropylmethacrylamide) microgel latexes

  • D. Duracher
  • A. Elaïssari
  • C. Pichot
ORIGINAL CONTRIBUTION

Abstract

 This article reports the colloidal and physicochemical characterization of crosslinked poly (N-isopropylmethacrylamide) (poly[NIPMAM]) latexes. The latex particles were first characterized by determining the lowest critical solubility temperature by measuring the optical density variation as a function of temperature. In addition, the electrophoretic mobility behaviors of all latexes were examined as a function of pH and temperature. Finally, the colloidal stability was investigated by determining the critical coagulation concentration and the critical flocculation temperature, and the corresponding results were discussed by taking into account both the effect of salinity and temperature on the solvency of poly[NIPMAM].

Key words Poly(N-isopropylmeth- acrylamide) Electrokinetic mobility Colloidal stability Critical coagulation concentration Critical flocculation temperature 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • D. Duracher
    • 1
  • A. Elaïssari
    • 1
  • C. Pichot
    • 1
  1. 1.Unité mixte CNRS-BioMérieux Ecole Normale Supérieure de Lyon 46 Allée d'Italie F-69364 Lyon cedex 07, France e-mail: christian.pichot@ens-bma.cnrs.fr Tel.: +33-4-72728364 Fax: +33-4-72728533FR

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