Film formation from TiO2-polystyrene latex composite: a fluorescence study
Yükleniyor...
Dosyalar
Tarih
2007-03-01
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Group
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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.
Açıklama
Anahtar Kelimeler
Composite, Ceramic, Void closure, Interdiffusion, Fluorescence, Latex, Poly(methyl methacrylate), Polystyrene particles, Photon transmission, Polymer interfaces, Stress development, Energy-transfer, Void closure, Diffusion, Interdiffusion, Coatings, Ceramic materials, Film preparation, Glass transition, Interdiffusion (solids), Latexes, Polystyrenes, Pyrene, Superconducting transition temperature, Titanium dioxide, Film formation, Steady state fluorescence (SSF), Composite materials
Kaynak
Composite Interfaces
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
14
Sayı
3
Künye
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
