" electron spin resonance imaging (ESRI)" . . . . "6"^^ . . "6"^^ . . "polymer gels" . "polymer gels; polymer solutions; local segmental dynamics; macroscopic translational diffusion; electron spin resonance (ESR); electron spin resonance imaging (ESRI); nitroxide spin labels and probes"@en . "Macroscopic translational diffusion coefficients of paramagnetic (nitroxide) tracers in polymer gels and in nondilute polymer solutions will be determined by ESR Imaging technique. Local chain dynamics in such polymer systems will be describedby parameters determined by analysis of ESR spectra of chemically attached nitroxide spin labels. Polymer matrices will be characterized by light scattering (hydrodynamic correlation length) and PGSE NMR (solvent diffusion) techniques. Dependence of both the diffusion coefficients of the tracers and the parameters characterizing local chain dynamics in polymer gels and in nondilute polymer solutions on polymer concentration and on other properties of the matrix (presence of temporary entanglements and permanent crosslinks) will be analyzed in terms of oxisting theoretical models. Diffusion of reactants capable of creating paramagnetic centers by oxidizing diamagnetic precursors chemically attached to the polymer matrix will be studied as well."@en . "2007-12-01+01:00"^^ . . "http://www.isvav.cz/projectDetail.do?rowId=IAA4050306"^^ . . . "2003-01-01+01:00"^^ . "Makroskopick\u00E1 transla\u010Dn\u00ED dif\u00FAze a lok\u00E1ln\u00ED dynamika v polymern\u00EDch syst\u00E9mech" . "0"^^ . "Za p\u011Bt let \u0159e\u0161en\u00ED projektu byl publikov\u00E1n jeden \u010Dl\u00E1nek v odborn\u00E9m periodiku (2004) a jedna kapitola v knize (2006). Oborov\u00E1 rada soud\u00ED, \u017Ee na p\u011Btilet\u00FD grant takov\u00E9hoto rozsahu je to p\u0159\u00EDli\u0161 mal\u00E1 publika\u010Dn\u00ED aktivita. Projekt ohodnotila jako nespln\u011Bn\u00FD."@cs . . . "0"^^ . "1"^^ . " polymer solutions" . . " electron spin resonance (ESR)" . "IAA4050306" . "In the five years of the duration of the project there is only one publication in the J. Phys. Chem. B. (2004) and one chapter in monograph (2006). The Department Council evaluated the project as unsuccessful."@en . "Macroscopic translational diffusion and local dynamics in polymer systems"@en . . . . . "2013-06-28+02:00"^^ . . "Makroskopick\u00E9 transla\u010Dn\u00ED dif\u00FAzn\u00ED koeficienty paramagnetick\u00FDch (nitroxidov\u00FDch) spinov\u00FDch zna\u010Dek v polymern\u00EDch gelech a v nez\u0159ed\u011Bn\u00FDch polymern\u00EDch roztoc\u00EDch budou ur\u010Deny technikou prostorov\u00E9ho zobrazen\u00ED ESR (ESRI). Lok\u00E1ln\u00ED dynamika polymern\u00EDch \u0159et\u011Bzc\u016F v takov\u00FDch syst\u00E9mech bude pops\u00E1na parametry ur\u010Den\u00FDmi anal\u00FDzou ESR spekter chemicky nav\u00E1zan\u00FDch nitroxidov\u00FDch spinov\u00FDch zna\u010Dek. Polymern\u00ED matrice budou charakterizov\u00E1ny technikami rozptylu sv\u011Btla (hydrodynamickou korela\u010Dn\u00ED d\u00E9lkou) a PGSE NMR (dif\u00FAze rozpou\u0161t\u011Bdla). Z\u00E1vislost jak dif\u00FAzn\u00EDch koeficient\u016F zna\u010Dek tak parametr\u016F charakterizuj\u00EDc\u00EDch lok\u00E1ln\u00ED dynamiku polymern\u00EDho \u0159et\u011Bzce v polymern\u00EDch matric\u00EDch na koncentraci polymeru a na dal\u0161\u00EDch vlastnostech matric (p\u0159\u00EDtomnost do\u010Dasn\u00FDch zapletenin a permanentn\u00EDch uzl\u016F) bude analyzov\u00E1na v r\u00E1mci existuj\u00EDc\u00EDch teoretick\u00FDch model\u016F. D\u00E1le bude studov\u00E1na dif\u00FAze reaktant\u016F schopn\u00FDch vytv\u00E1\u0159et paramagnetick\u00E1 centra oxidac\u00ED diamagnetick\u00FDch prekurzor\u016F chemicky nav\u00E1zan\u00FDch k polymern\u00ED matrici." . "2007-02-27+01:00"^^ . . . " macroscopic translational diffusion" . . " local segmental dynamics" .