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Synthesis of poly-2-hydroxyethyl methacrylate–montmorillonite nanocomposite via in situ atom transfer radical polymerization

Published online by Cambridge University Press:  31 January 2011

Ayhan Oral ,
Talal Shahwan  and
Çetin Güler
Ayhan Oral*
Affiliation:
Department of Chemistry, Faculty of Arts and Science, Çanakkale Onsekiz Mart University, Çanakkale-17100, Turkey; and Department of Chemistry, Faculty of Science, Ege University, İzmir-Turkey
Talal Shahwan
Affiliation:
Department of Chemistry, İzmir Institute of Technology, 35430 Urla, İzmir-Turkey
Çetin Güler
Affiliation:
Department of Chemistry, Faculty of Science, Ege University, İzmir-Turkey
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

The poly-2-hyroxyethyl methacrylate (PHEMA)/clay nanocomposite was synthesized by in situ atom transfer radical polymerization (ATRP) from initiator moieties immobilized within the silicate galleries of the clay particles. To produce organically modified montmorillonite (MMT) that has ATRP initiator moiety, a new catalyst that consists of quaternary ammonium salt moiety and an initiator moiety was synthesized. This initiator was intercalated into the interlayer spacing of the MMT. The polymerization reaction was carried out in a mixed solvent system consisting of methyl ethyl ketone and 1-propanol at 50 °C, using the initiator that has been already synthesized with a copper bromide catalyst. The 2, 2′-bipyridyl (bpy) complex was used as ligand. The products were characterized via Fourier transform infrared, nuclear magnetic resonance (1H NMR, 12C NMR), transmission electron microscopy, x-ray diffraction, thermogravimetric analysis, and differential scanning calorimetry.

Keywords

LayeredNanostructurePolymerization
Type
Articles
Information
Journal of Materials Research , Volume 23 , Issue 12: Biomimetic and Bio-enabled Materials Science and Engineering , December 2008 , pp. 3316 - 3322
Copyright
Copyright © Materials Research Society 2008

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