Browsing by Author "Elaissari, Abdelhamid"
Authors:Uğur, Şaziye; Yargı, Önder; Elaissari, Abdelhamid; Pekcan, Önder
Publisher and Date:(Wiley-VCH Verlag GmbH, 2009)A simple fluorescence technique is proposed for the measurement of the diffusion coefficient of oxygen into polystyrene-clay composite films as a function of clay content and temperature. The composite films were prepared from a mixture of surfactant-free pyrene-labeled polystyrene latexes and modified Na-montmorillonite clay of various compositions at room temperature. Diffusion measurements were performed with films at room temperature for seven different clay contents (0 5 10 20 30 50 and 60 ...
Authors:Uğur, Şaziye; Sunay, M. Selin; Elaissari, Abdelhamid; Pekcan, Önder
Publisher and Date:(John Wiley & Sons Inc, 2010)In this work the effect of hard particle size and blend ratio on the film formation behavior of hard polystyrene (PS) and soft poly(n-butyl acrylate) (PBA) latex blends was studied by means of steady-state fluorescence and UV-visible techniques in conjunction with atomic force microscopy. Three different sets of latexes were synthesized: PBA latex (diameter 97 nm) pyrene (P)-labeled large PS (LgPS
Spectroscopic study of film formation from polystyrene latex/TiO2 nanocomposites prepared by dip-coating method Authors:Sunay, M. Selin; Pekcan, Önder; Rahman, Md. Mahbubor; Elaissari, Abdelhamid; Ugur, Saziye
Publisher and Date:(Wiley-Blackwell, 2014)In this study we investigated the influence of TiO2 content and thickness of polystyrene (PS) template on film-formation behavior of PS/TiO2 composites using fluorescence and ultraviolet-visible techniques in conjunction with scanning electron microscopy. Films were prepared by coating PS templates with various layers of TiO2 using dip-coating method. The results showed that PS latexes present complete film formation on top surface of composites. After extraction of PS a well-defined interconnected ...