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Colloid and Polymer Science

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01-10-2007 | Original Contribution

Thermoresponsive polymeric nanoparticles stabilized by surfactants

Authors: Čestmír Koňák, Jiří Pánek, Martin Hrubý

Published in: Colloid and Polymer Science | Issue 13/2007

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Abstract

Solutions of poly(N-isopropylacrylamide) (PNIPA) with ionic and nonionic surfactants were investigated by light scattering methods at temperatures 15–45 °C. In contrast to previous studies, where surfactants were used in excess, lower concentrations of surfactants were used. The formation of well-defined nanoparticles of PNIPA was observed on heating above the lower critical solution temperature. The effect of PNIPA and surfactant concentrations, and molecular weight of PNIPA on nanoparticle parameters and on the phase transition temperature of PNIPA solutions were investigated. An interpretation based on stabilization of PNIPA nuclei by surfactants was suggested.

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Title: Thermoresponsive polymeric nanoparticles stabilized by surfactants
Authors: Čestmír Koňák
Jiří Pánek
Martin Hrubý
Publication date: 01-10-2007
Publisher: Springer-Verlag
Published in: Colloid and Polymer Science / Issue 13/2007
Print ISSN: 0303-402X
Electronic ISSN: 1435-1536
DOI: https://doi.org/10.1007/s00396-007-1700-2

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