alpha-Fe2O3 nanorods were incorporated into poly(methyl methacrylate) (PMMA) by in situ radical polymerisation of methyl methacrylate initiated by 2,2 '-azobisisobutyronitrile. The alpha-Fe2O3 nanorods were synthesized by forced hydrolysis of FeCl3 and structural characterization was performed by X-ray diffraction and transmission electron microscopy. The molar mass and the polydispersity index of synthesized PMMA samples were determined by gel permeation chromatography. The content of residual monomer was determined by H-1 NMR spectroscopy. The influence of alpha-Fe2O3 nanorods on the thermal stability of the polymer was investigated using thermogravimetry and differential scanning calorimetry. The molar mass and polydispersity index of PMMA were dependent on the content of alpha-Fe2O3 nanorods. The values of the glass transition temperature of the nanocomposites were lower compared to pure PMMA. Also, the thermal stability of nanocomposites in nitrogen and air was different from that of pure PMMA. (c) 2007 Elsevier Ltd. All rights reserved.
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Univ Kentucky, Lab Funct Mat, Lexington, KY 40506 USA
Univ Kentucky, Dept Mech & Aerosp Engn, Lexington, KY 40506 USAUniv Kentucky, Lab Funct Mat, Lexington, KY 40506 USA
Huang, You-Lin
Li, Wei
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Univ Kentucky, Dept Mech & Aerosp Engn, Lexington, KY 40506 USAUniv Kentucky, Lab Funct Mat, Lexington, KY 40506 USA
Li, Wei
Yang, Fuqian
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Univ Kentucky, Lab Funct Mat, Lexington, KY 40506 USA
Univ Kentucky, Dept Chem & Mat Engn, Lexington, KY 40506 USAUniv Kentucky, Lab Funct Mat, Lexington, KY 40506 USA
机构:
Fayoum Univ, Fac Sci, Phys Dept, Al Fayyum 63514, Egypt
Natl Egyptian E Learning Univ, Fac Comp & Informat Technol, Giza 12611, EgyptFayoum Univ, Fac Sci, Phys Dept, Al Fayyum 63514, Egypt
Khalifa, M.
El Sayed, Adel M.
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Fayoum Univ, Fac Sci, Phys Dept, Al Fayyum 63514, EgyptFayoum Univ, Fac Sci, Phys Dept, Al Fayyum 63514, Egypt
El Sayed, Adel M.
Kassem, Said M.
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Egyptian Atom Energy Author EAEA, Natl Ctr Radiat Res & Technol NCRRT, Radiat Protect & Dosimetry Dept, Cairo, EgyptFayoum Univ, Fac Sci, Phys Dept, Al Fayyum 63514, Egypt
Kassem, Said M.
Tarek, E.
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Fayoum Univ, Fac Sci, Phys Dept, Al Fayyum 63514, EgyptFayoum Univ, Fac Sci, Phys Dept, Al Fayyum 63514, Egypt
机构:
Fayoum Univ, Dept Phys, Fac Sci, Al Fayyum 63514, Egypt
Northern Border Univ, Dept Phys, Fac Sci, Ar Ar 91431, Saudi ArabiaFayoum Univ, Dept Phys, Fac Sci, Al Fayyum 63514, Egypt
El Sayed, Adel M.
Mohamad, Ahmad Desoky M.
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Sohag Univ, Dept Chem, Fac Sci, Sohag 82534, Egypt
Northern Border Univ, Dept Chem, Fac Sci, Ar Ar, Saudi ArabiaFayoum Univ, Dept Phys, Fac Sci, Al Fayyum 63514, Egypt