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Proceedings Paper

Polymer-ceramic nanocomposites
Author(s): Önder Pekcan; Şaziye Uğur
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Paper Abstract

Steady state fluorescence (SSF) and photon transmission (PT) techniques were used for studying film formation from TiO2 and Al2O3 covered polystyrene (PS) latex particles. These films were annealed at elevated temperatures in 10 min time intervals above glass transition (Tg) temperature of polystyrene. Fluorescence emission, Ip and transmitted photon, Itr intensities were measured after each annealing step to monitor the stages of film formation. Films present dramatic increase in both Itr and Ip above the certain onset temperature called minimum film forming temperature, T0. Dissolution of annealed PS film, with high TiO2 content presented a nice, ordered nano-sized ceramic structure, which may predict the construction of nano-layer photonic crystals. It was observed that latex particles are encapsulated above a critical Al2O3 content of 33 wt% which corresponds to the critical occupation probability of pc=0.33 at which the film obey the site-percolation model with a critical exponent of 0.45.

Paper Details

Date Published: 20 May 2009
PDF: 14 pages
Proc. SPIE 7366, Photonic Materials, Devices, and Applications III, 736609 (20 May 2009); doi: 10.1117/12.821747
Show Author Affiliations
Önder Pekcan, Kadir Has Üniv. (Turkey)
Şaziye Uğur, Istanbul Technical Univ. (Turkey)


Published in SPIE Proceedings Vol. 7366:
Photonic Materials, Devices, and Applications III
Ali Serpenguzel; Gonçal Badenes; Giancarlo C. Righini, Editor(s)

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