Fluorescence study of effect of particle size in PS latex/Al2O3 nanocomposite films. (14th May 2015)

• Record Type: Journal Article
• Authors: Uğur, Ş.; Selin Sunay, M.; Pekcan, Ö.
• Is Part Of: Plastics, rubber, and composites. Volume 44:Number 4(2015)
• Page Start: 129
• Page End: 141
• Publication Date: 2015-05-14
• Subjects: Plastics -- Periodicals; Rubber -- Periodicals; Polymeric composites -- Periodicals; Polymer engineering -- Periodicals; 668.9
• DOI: 10.1179/1743289814Y.0000000120
• Languages: German
• ISSNs: 1465-8011

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <p>Steady state fluorescence and BioUV-Visible techniques were used to study film formation of polystyrene (PS) latex and Al₂O₃ composites depending on PS particles size and Al₂O₃ content. Two film series (SmPS/Al₂O₃ and LgPS/Al₂O₃) were prepared covering PS sphere (SmPS: 203 nm; LgPS: 382 nm) templates with various layers of Al₂O₃ by dip coating method. The film formation behaviours of composites were studied by annealing them at a temperature range of 100–250°C and monitoring the scattered (<italic>I</italic>_sc), fluorescence (<italic>I</italic>_P) and transmitted (<italic>I</italic>_tr) light intensities after each annealing step. The results indicate that LgPS/Al₂O₃ films underwent complete film formation independent of Al₂O₃ content while no film formation occurred above a certain Al₂O₃ content for SmPS/Al₂O₃. Extraction of PS produced ordered porous structures for high Al₂O₃ content in both series. Scanning electron microscopy images showed that the pore size and porosity could be easily tailored by varying PS particle size and Al₂O₃ content.</p> </abstract>