Preparation, characterization and water barrier properties of PS/organo-montmorillonite nanocomposites
(EN)
Giannakas, A.
(EN)
Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας
(EL)
Giannakas, A.
(EN)
Polystyrene/organo-montmorillonite nanocomposites were prepared via solution blending method, using CHCl(3) and CCl(4) as solvents, The clay used was organically modified by hexadecyltrimethyl-ammonium bromide (CTAB) at various surfactant loadings. Intercalated nanocomposite structure was obtained using CHCl(3) as solvent while exfoliated or partially exfoliated was probably the predominated form in the case of CCl(4), as shown by X-ray diffraction measurements. Enhancement in thermal stability and in water barrier properties was observed for PS-nanocomposites compared to that of pristine polymer as indicated by thermogravimetric analysis and water vapor transmission measurements. This increment was more prevalent for nanocomposites prepared with carbon tetrachloride as solvent. (C) 2008 Published by Elsevier Ltd.
(EN)
