Issue 9, 2011
From the journal:

Polymer Chemistry

Temperature and pH responsive hybrid nanoclay grafted with PDMAEMA†

Jukka Niskanen,a   Mikko Karesoja,b   Teemu Rossic  and  Heikki Tenhu*d  

* Corresponding authors

a Laboratory of Polymer chemistry, Department of Chemistry, University of Helsinki, P.O. Box 55, Helsinki, Finland
E-mail: jukka.niskanen@helsinki.fi

b Laboratory of Polymer chemistry, Department of Chemistry, University of Helsinki, P.O. Box 55, Helsinki, Finland
E-mail: mikko.karesoja@helsinki.fi

c Laboratory of Polymer chemistry, Department of Chemistry, University of Helsinki, P.O. Box 55, Helsinki, Finland
E-mail: teemu.rossi@helsinki.fi

d Laboratory of Polymer chemistry, Department of Chemistry, University of Helsinki, P.O. Box 55, Helsinki, Finland
E-mail: heikki.tenhu@helsinki.fi
Fax: +358 9 1915 0330
Tel: +358 9 1915 0335

Abstract

Recent advances in grafting from techniques have made it possible to produce hybrid materials from montmorillonite clay by covalently grafting polymers to the surface of montmorillonite particles. In this article the temperature and pH responsiveness of a hybrid material consisting of poly(dimethylaminoethyl methacrylate) (PDMAEMA) grafted clay is investigated by differential scanning calorimetry, pressure perturbation calorimetry and fluorescence spectroscopy. The phase transition is affected not only by the pH of the aqueous medium, but also by the electrostatic interactions between the positively charged polymer and negatively charged clay particles.

Graphical abstract: Temperature and pH responsive hybrid nanoclay grafted with PDMAEMA

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Article information

DOI
https://doi.org/10.1039/C1PY00143D
Article type
Paper
Submitted
31 Mar 2011
Accepted
30 May 2011
First published
29 Jun 2011

Polym. Chem., 2011,2, 2027-2036

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Temperature and pH responsive hybrid nanoclay grafted with PDMAEMA

J. Niskanen, M. Karesoja, T. Rossi and H. Tenhu, Polym. Chem., 2011, 2, 2027 DOI: 10.1039/C1PY00143D

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