In situ fluorescence study of swelling, sorption and desorption processes in and out of PAAm gels
Yükleniyor...
Dosyalar
Tarih
2008-05
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley-V C H Verlag GMBH
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Small molecule sorption and desorption in and out of polyacrylamide (PAAm) gels were studied at various temperatures. Pyranine (P(y)) dissolved in water used as a probe. Fluorescence emission intensity, I(p) from P(y) was monitored for studying sorption and desorption processes. Scattered light intensities, I(SC) from PAAm gel was also monitored to observed structural variations during sorption and desorption process. Li-Tanaka model was applied to produce the swelling time constants, tau(C) and sorption coefficients, D(C) for the swelling processes. on the other hand, sorption and desorption processes were studied and coefficients were produced by using Fickian model. Related activation energies were also calculated from the corresponding physical processes.
Açıklama
Anahtar Kelimeler
Desorption, Fluorescence, Hydrogels, Sorption, Temperature, Photon Transmission Technique, Radical Cross-Linking, Polyacrylamide Gels, Phase-Transition, Linker Contents, Temperature, Diffusion, Hydrogels, Kinetics, Copolymerization, ABS resins, Activation energy, Colloids, Dissolution, Emission spectroscopy, Gelation, Gels, Light emission, Lithium, Luminescence, Polymers, Desorption processes, Desorptlon, Fickian models, Fluorescence emission intensities, Fluorescence studies, In-situ, Physical processes, Polyacrylamide, Pyranine, Scattered light, Small molecules, Sorption coefficients, Structural variations, Swelling processes, Swelling times
Kaynak
Macromolecular Symposia
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
265
Sayı
Künye
Evingür, G. A., Karsh, K. & Pekcan, M. Ö. (2008). In situ fluorescence study of swelling, sorption and desorption processes in and out of PAAm gels. Macromolecular Symposia, 265(1), 100-110. doi:10.1002/masy.200850511
