Film formation from nano-sized polystyrene latex particles
Yükleniyor...
Dosyalar
Tarih
2005-05
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
John Wiley & Sons Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This work reports on the steady state fluorescence (SSF) technique for studying film formation from surfactant-free, nano-sized polystyrene (PS) latex particles prepared via emulsion polymerization. The latex films were prepared from pyrene M-labeled PS particles at room temperature and annealed at elevated temperatures in 5, 10, 15, 20 and 30 min time intervals above the glass transition temperature (T-g) of PS. During the annealing processes, the transparency of the film was improved considerably. Monomer and excimer fluorescence intensities, I-p and I-E respectively, from P were measured after each annealing step to monitor the stages of film formation. Evolution of transparency of the latex films was monitored by using photon transmission intensity, It,. Void closure and interdiffusion stages were modeled and related activation energies were determined and found to be 10.3 and 50.3 kJ mol(-1). Void closure temperatures, T-v, were determined from the minima of I-tr value. Copyright
Açıklama
Anahtar Kelimeler
Intramolecular excimers, Photon transmission, Polymer interfaces, Void closure, Fluorescence, Diffusion, Interdiffusion, Dispersions, Chain, Water, Voids, Interdiffusion, Excimer, Polystyrene, Annealing, Emulsion polymerization, Film preparation, Glass transition, Latexes, Monomers, Nanostructured materials, Surface active agents, Film formation, Nano-sized polystyrenes, Steady state fluorescence (SSF), Polystyrenes
Kaynak
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
16
Sayı
5
Künye
Uğur, Ş., Elaissari, A. & Pekcan, M. Ö. (2005). Film formation from nano‐sized polystyrene latex particles. Polymers for Advanced Technologies, 16(5), 405-412. doi:10.1002/pat.597
