Translational diffusion of paramagnetic tracers in HEMA gels and in concentrated solutions of polyHEMA by 1D electron spin resonance imaging

0188845 - UMCH-V 20023110 RIV US eng J - Journal Article
Marek, Antonín - Labský, Jiří - Koňák, Čestmír - Pilař, Jan - Schlick, S.
Translational diffusion of paramagnetic tracers in HEMA gels and in concentrated solutions of polyHEMA by 1D electron spin resonance imaging.
Macromolecules. Roč. 35, č. 14 (2002), s. 5517-5528. ISSN 0024-9297. E-ISSN 1520-5835
R&D Projects: GA AV ČR IAA4050804
Institutional research plan: CEZ:AV0Z4050913
Keywords : Macroscopic translational diffusion of paramagnetic tracers * electron spin resonance imaging * HEMA gels and concentrated solutions
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 3.751, year: 2002

Macroscopic diffusion coefficients of paramagnetic tracers in crosslinked 2-hydroxyethyl methacrylate (HEMA) gels equilibrium-swollen with methanol and in polyHEMA methanolic solutions were measured by one-dimensional Electron Spin Resonance Imaging (1D ESRI). A slower diffusion of the tracers was found in HEMA gels compared with the solution containing the same concentration of polyHEMA and even with the solution characterized by the same hydrodynamic mean distance between adjacent entanglement points.
Permanent Link: http://hdl.handle.net/11104/0002583