Time evolution of film formation from polystyrene particles: a percolation approach
Dosyalar
Tarih
2005-12
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This work reports the film formation process from surfactant-free polystyrene (PS) latex particles. Steady state fluorescence and photon transmission techniques were used to study the evolution of film formation. The films were prepared from fluorescein (F)-labeled PS latex particles at room temperature and annealed in 2.5-min-time intervals above the glass transition temperature (T-g) of PS. Fluorescence intensity (I-F) from F was measured after each annealing step to monitor the stages of film formation. Evolution of transparency of latex films was monitored by using the photon transmission intensity, I-tr. Drastic increase in I-tr and I-F above the critical annealing times t(r) and t(c) respectively, were attributed to the percolation behavior of the PS material. Critical exponents, beta, of percolation clusters were measured and found to be around 0.31 and 0.37 for Itr and IF measurement, respectively, which were attributed to the site percolation model.
Açıklama
Anahtar Kelimeler
T latex-particles, Photon transmission, Molecular-weight, Energy-transfer, Diffusion, Fluorescence, Fracture, Interdiffusion, Coalescence, Polymers, Latex film, Percolation, Transmitted light, Polystyrene particles, Film preparation, Light transmission, Mathematical models, Percolation (fluids), Photons, Fluorescein, Latex, Polystyrene, Surfactant, Cross linking, Film, Fluorescence analysis, Glass transition temperature, Priority journal, Room temperature, Steady state, Film formation, Polystyrene (PS) latex particles, Polystyrenes
Kaynak
Colloid and Polymer Science
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
284
Sayı
3
Künye
Uğur, Ş. & Pekcan, M. Ö. (2005). Time evolution of film formation from polystyrene particles: A percolation approach. Colloid and Polymer Science, 284(3), 309-316. doi:10.1007/s00396-005-1380-8
