Preparation of polystyrene-grafted titanate nanotubes by in situ atom transfer radical polymerization

2009 ◽  
Vol 52 (3) ◽  
pp. 344-350 ◽  
Author(s):  
Yuan Gao ◽  
YongFeng Zhou ◽  
DeYue Yan
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Titanate Nanotubes ◽  
Atom Transfer

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

2008 ◽  
Vol 23 (12) ◽  
pp. 3316-3322 ◽  
Author(s):  
Ayhan Oral ◽  
Talal Shahwan ◽  
Çetin Güler
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Interlayer Spacing ◽  
Solvent System ◽  
Polymerization Reaction ◽  
Atom Transfer ◽  
Scanning Calorimetry ◽  
Copper Bromide ◽  
Transmission Electron

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.

Spherical mesoporous silica nanoparticles/tailor-made polystyrene nanocomposites by in situ reverse atom transfer radical polymerization

2014 ◽  
Vol 56 (6) ◽  
pp. 909-918 ◽  
Author(s):  
Khezrollah Khezri ◽  
Hossein Roghani-Mamaqani ◽  
Mohammadreza Sarsabili ◽  
Masoud Sobani ◽  
Seyed-Ataollah Mirshafiei-Langari
Keyword(s):  
Mesoporous Silica ◽  
Atom Transfer Radical Polymerization ◽  
Silica Nanoparticles ◽  
Radical Polymerization ◽  
Mesoporous Silica Nanoparticles ◽  
Atom Transfer
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