Effects of annealing on morphology of polymer/polymer (PS/PMMA) blend; a fluorescence study
Künye
Uğur, Ş. & Pekcan, M. Ö. (2006). Effects of annealing on morphology of polymer/polymer (PS/PMMA) blend; a fluorescence study. Journal of Applied Polymer Science, 100(3), 2104-2110. doi:10.1002/app.23458Özet
Steady state fluorescence (SSF) technique conjunction with optical microscopy were used to study the morphology of polystyrene (PS)/poly(methyl methacrylate) (PMMA) blend upon annealing above glass transition in elevated time intervals. The PS/PMMA blends were prepared from dissolution of pyrene (P) and naphthalene (N) labeled PS and PMMA particles, respectively. Monte Carlo Simulations were performed to model the N and P fluorescence intensities (I-N and I-P), Using photon diffusion theory. Number of N and P photons (N-N and N-P) emerging from the front surface of the blend are calculated when only N is excited, where N-P photons are combined of photons from radiative (N-PR) and nonradiative (N-PNR) energy transfer processes. Optical microscopy images were taken at each annealing step to Support Our findings from fluorescence measurements.
Kaynak
Journal of Applied Polymer ScienceCilt
100Sayı
3Koleksiyonlar
İlgili Öğeler
Başlık, yazar, küratör ve konuya göre gösterilen ilgili öğeler.
-
Dissolution of Al2O3-polystyrene latex composites: A fluorescence study
Uǧur, Şaziye; Tepehan, Fatma Zehra; Pekcan, Mehmet Önder (Taylor & Francis Ltd, 2005)This work reports the use of the steady state fluorescence (SSF) technique to study dissolution of a composite film formed from a mixture of Al 2O3 and polystyrene (PS) latex particles. The composite films were cast from ... -
Film formation from pure and mixed latices; transient fluorescence study
Uğur, Şaziye; Pekcan, Mehmet Önder (Academic Press Inc Elsevier Science, 2005-11-15)A fast transient fluorescence technique was used to study latex film formation induced by organic solvent vapor. Mixtures of pyrene (P)- and naphthalene (N)-labeled and/or pure naphthalene-labeled latex films were prepared ... -
Films formed from polystyrene latex/clay composites: A fluorescence study
Uğur, Şaziye; Alemdar, Ayşe; Pekcan, Mehmet Önder (Springer New York, 2005-07)This study reports a steady-state fluorescence (SSF) technique for studying film formation from surractant-free polystyrene (PS) latex and Na-montmorillonite (SNaM) composites. The composite films were prepared from pyrene ...