Temperature and pH responsive hybrid nanoclay grafted with PDMAEMA

Jukka Niskanen; Mikko Karesoja; Teemu Rossi; Heikki Tenhu

doi:10.1039/c1py00143d

Temperature and pH responsive hybrid nanoclay grafted with PDMAEMA

Jukka Niskanen, Mikko Karesoja, Teemu Rossi, Heikki Tenhu^*

^*Corresponding author for this work

Not published at Aalto University

University of Helsinki

Research output: Contribution to journal › Article › Scientific › peer-review

29 Citations (Scopus)

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.

Original language	English
Pages (from-to)	2027-2036
Number of pages	10
Journal	Polymer Chemistry
Volume	2
Issue number	9
DOIs	https://doi.org/10.1039/c1py00143d
Publication status	Published - Sept 2011
MoE publication type	A1 Journal article-refereed

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AB - 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.

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Temperature and pH responsive hybrid nanoclay grafted with PDMAEMA

Abstract

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