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  • 1- Fakülteler | Faculties
  • Fen Edebiyat Fakültesi / Faculty of Arts and Sciences
  • Fizik Bölümü / Department of Physics
  • FEF - Makale Koleksiyonu | Fizik Bölümü / Department of Physics
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Film formation from TiO2-polystyrene latex composite: a fluorescence study

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Date

2007-03-01

Author

Uğur, Şaziye
Sunay Yapışkan, Münüre Selin
Tepehan, Fatma Zehra
Pekcan, Mehmet Önder

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Citation

Tepehan, F., Sunay, S., Uğur, Ş. & Pekcan, M. Ö. (2007). Film formation from TiO2-polystyrene latex composite: A fluorescence study. Composite Interfaces, 14(3), 243-260. doi:10.1163/156855407780340340

Abstract

This work reports the use of the steady state fluorescence (SSF) technique for studying film formation from TiO2 covered polystyrene (PS) latex particles. The composite films were prepared from pyrene (P)-labeled PS particles by covering them with TiO2 at room temperature and then annealed at elevated temperatures in 10 min time interval above glass transition (T-g) temperature of polystyrene. Five different composite films were studied in various TiO2 layer contents. Fluorescence intensities Ip from P were measured after each annealing step to monitor the stages of film formation. Films showed considerable increase in Ip above the certain onset temperature called minimum film forming temperature, T-0. Void closure and interdiffusion stages were modeled and related activation energies were determined and found to be 23.12 and 92.80 kJ mol(-1), respectively.

Source

Composite Interfaces

Volume

14

Issue

3

URI

https://hdl.handle.net/11729/268
http://dx.doi.org/10.1163/156855407780340340

Collections

  • FEF - Makale Koleksiyonu | Fizik Bölümü / Department of Physics [155]
  • Scopus İndeksli Makale Koleksiyonu [885]
  • WoS İndeksli Makale Koleksiyonu [893]



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