. . . "Byla ur\u010Dena z\u00E1vislost dif\u00FAzn\u00EDch koeficient\u016F paramagnetick\u00FDch zna\u010Dek v hydrogelov\u00E9 matrici na molekulov\u00E9 hmotnosti zna\u010Dek a na koncentraci polymeru v gelu. Z\u00E1vislost dif\u00FAzn\u00EDch koeficient\u016F na koncentraci s\u00ED\u0165ovadla v hydrogelu se dosud prok\u00E1zat nepoda\u0159ilo."@cs . "Dependence of diffusion coefficients of paramagnetic tracers in hydrogel matrices on molecular weight of the tracers and on polymer concentration in the gel was determined. Their dependence on crosslinker concentration in the gel has not been proved yet."@en . "2008-01-01+01:00"^^ . . "Tracer diffusion in polymer gels in dependence on structure of the gel matrix."@en . " electron spin resonance imaging (ESRI)" . . "2011-03-18+01:00"^^ . "The project is aimed at understanding the dependence of diffusion coefficients of tracers in equilibrium swollen polymer hydrogels on the structure of the hydrogels characterized by swelling ratio, polymer volume fraction, dynamic correlation length, and concentration of elastically active chains. Coefficients of macroscopic translational diffusion of tracers carrying paramagnetic labels will be measured using electron spin resonance imaging (ESRI). Self-diffusion and mutual diffusion coefficients of corresponding diamagnetic tracers will be measured by pulsed-gradient stimulated NMR spin-echo and dynamic light scattering, respectively. Better understanding the principles controlling diffusion processes should make possible not only better description and prediction of transport properties of polymer gels in dependence on their structure in the frame of existing theoretical models but also preparation of polymer gels with transport properties required for various applications."@en . "http://www.isvav.cz/projectDetail.do?rowId=IAA400500805"^^ . . . . "IAA400500805" . . "C\u00EDlem projektu je objasnit z\u00E1vislost dif\u00FAzn\u00EDch koeficient\u016F molekul\u00E1rn\u00EDch zna\u010Dek v rovnov\u00E1\u017En\u011B zbotnal\u00FDch polymern\u00EDch hydrogelech na struktu\u0159e hydrogel\u016F charakterizovan\u00E9 botnac\u00EDm pom\u011Brem, objemov\u00FDm zlomkem polymeru, dynamickou korela\u010Dn\u00ED d\u00E9lkou a koncentrac\u00ED elasticky aktivn\u00EDch \u0159et\u011Bzc\u016F. Koeficienty makroskopick\u00E9 transla\u010Dn\u00ED dif\u00FAze molekul\u00E1rn\u00EDch zna\u010Dek nesouc\u00EDch paramagnetick\u00E9 skupiny budou zji\u0161t\u011Bny technikou prostorov\u00E9ho zobrazen\u00ED elektronov\u00E9 spinov\u00E9 rezonance (ESRI). Koeficienty %22self-dif\u00FAze%22 a %22mutual%22 dif\u00FAze diamagnetick\u00FDch analog\u016F t\u011Bchto zna\u010Dek budou ur\u010Deny NMR technikou pulsn\u00EDho stimulovan\u00E9ho spinov\u00E9ho echa a dynamick\u00FDm rozptylem sv\u011Btla. Lep\u0161\u00ED pochopen\u00ED z\u00E1konitost\u00ED \u0159\u00EDd\u00EDc\u00EDch dif\u00FAzn\u00ED procesy umo\u017En\u00ED nejen lep\u0161\u00ED popis a p\u0159edpov\u011B\u010F transportn\u00EDch vlastnost\u00ED polymern\u00EDch gel\u016F v z\u00E1vislosti na jejich struktu\u0159e v r\u00E1mci existuj\u00EDc\u00EDch teoretick\u00FDch model\u016F ale tak\u00E9 p\u0159\u00EDpravu polymern\u00EDch gel\u016F s transportn\u00EDmi vlastnostmi vy\u017Eadovan\u00FDmi pro r\u016Fzn\u00E9 technick\u00E9 a l\u00E9ka\u0159sk\u00E9 aplikace." . "Dif\u00FAze molekul\u00E1rn\u00EDch zna\u010Dek v polymern\u00EDch gelech v z\u00E1vislosti na struktu\u0159e gelov\u00E9 matrice." . "polymer gels" . . . . " self-diffusion" . "2011-12-31+01:00"^^ . "0"^^ . . . "polymer gels; macroscopic translational diffusion; self-diffusion; correlation length; concentration of elastically active chains; electron spin resonance imaging (ESRI); nitroxides; paramagnetic tracers"@en . . . "2013-06-28+02:00"^^ . . " concentration of elastically active chains" . "1"^^ . " macroscopic translational diffusion" . "2"^^ . " nitroxides" . "0"^^ . . "2"^^ . . " correlation length" .