Dissolution of Al2O3-polystyrene latex composites: A fluorescence study
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CitationUğur, Ş., Tepehan, F. & Pekcan, M. Ö. (2005). Dissolution of Al2O3-polystyrene latex composites: A fluorescence study. Composite Interfaces, 12(5), 411-423. doi:10.1163/1568554054275733
This work reports the use of the steady state fluorescence (SSF) technique to study dissolution of a composite film formed from a mixture of Al 2O3 and polystyrene (PS) latex particles. The composite films were cast from dispersion of pyrene (P)-labeled PS particles in Al 2 O3 solution at room temperature and annealed at 280°C temperature for 10 min. Eight different composite films were studied in various latex contents. Toluene was used as dissolution agent. Fluorescence intensities Ip from P were monitored during dissolution. Fickian diffusion was employed to model the dissolution processes. Dissolution coefficients, D d, were measured and found to be increased at high PS content in the composite films.
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