Publication: In situ Fluorescence Study of Swelling, Sorption and Desorption Processes in and out of PAAm Gels
Loading...
Date
Advisor
Department
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley
Type
Abstract
AbstractSummary: Small molecule sorption and desorption in and out of polyacrylamide (PAAm) gels were studied at various temperatures. Pyranine (Py) dissolved in water used as a probe. Fluorescence emission intensity, Ip from Py was monitored for studying sorption and desorption processes. Scattered light intensities, Isc 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, τc and sorption coefficients, Dc 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.
Description
Journal or Series
Macromolecular Symposia
ISSN
1022-1360
ISBN
Rights
CLOSED
Keywords
Gelation, Luminescence, Polyacrylamide, Swelling times, Polymers, Fluorescence emission intensities, Swelling processes, Lithium, Photon Transmission Technique, Radical Cross-Linking, Fluorescence, Light emission, Physical processes, Diffusion, Linker Contents, Fluorescence studies, Copolymerization, Activation energy, Colloids, Polyacrylamide Gels, Scattered light, Small molecules, Temperature, Pyranine, Sorption coefficients, Fickian models, In-situ, Hydrogels, Emission spectroscopy, Structural variations, Kinetics, Sorption, Desorption, ABS resins, Phase-Transition, Desorptlon, Gels, Dissolution, Desorption processes