Matches in SemOpenAlex for { <https://semopenalex.org/work/W2022305513> ?p ?o ?g. }
- W2022305513 endingPage "83" @default.
- W2022305513 startingPage "71" @default.
- W2022305513 abstract "The self-diffusion of the poly(vinyl alcohol) (PVA) cryogels prepared by freezing–thawing the aqueous and water/DMSO solutions of PVA was studied with the NMR FT-PGSE method. The temperature dependencies of the self-diffusion coefficients, Ds, for the PVA chains have a maximum at 45°C due to the syneresis of cryogels. They are quite different from the monotonous increase of Ds for the aqueous solutions of PVA. Evaluated apparent activation energies, Ea, of the self-diffusion for the PVA chains in the PVA solutions and cryogels in D2O are practically the same and equal 22–24 kJ mol−1 below the crucial point. The proton spin-lattice relaxation times, T1, of the PVA chain also coincide with one another for solutions and cryogels. It means that molecular packing in cryogels depends mainly on the dimensions of the ice and polymer microcrystallites formed by freezing the solution. Above the crucial point polymer compartments become firmer, and the chain mobility somewhat reduces. The strength of cryogels also increases along with growing the DMSO contents and decreases by the BSA addition. For an estimation of the cryogel morphology, effects of the restricted diffusion of both the water and PVA in a q-space have been taken into account. By introducing DMSO to cryogels, the solvent filled pores become smaller, and channels become much shorter. The diameter of the PVA filaments is similar to those for all the cryogels, but the length of filaments with D2O is twice those for cryogels with a mixed solvent. Entrapment of BSA in the cryogel matrix by preparation leads to the increase of an average diameter of the water filled pores, and destroys molecular packing the cryogel." @default.
- W2022305513 created "2016-06-24" @default.
- W2022305513 creator A5074557429 @default.
- W2022305513 date "2000-04-01" @default.
- W2022305513 modified "2023-09-30" @default.
- W2022305513 title "Compartmentation in the poly(vinyl alcohol) cryogels. 1H NMR self-diffusion study" @default.
- W2022305513 cites W1488752306 @default.
- W2022305513 cites W182200522 @default.
- W2022305513 cites W1902171127 @default.
- W2022305513 cites W1970059126 @default.
- W2022305513 cites W1973502808 @default.
- W2022305513 cites W1974603952 @default.
- W2022305513 cites W1983166731 @default.
- W2022305513 cites W1987534529 @default.
- W2022305513 cites W1988720018 @default.
- W2022305513 cites W1991425810 @default.
- W2022305513 cites W1992926427 @default.
- W2022305513 cites W1993176556 @default.
- W2022305513 cites W1997630751 @default.
- W2022305513 cites W2004101313 @default.
- W2022305513 cites W2004868029 @default.
- W2022305513 cites W2005312792 @default.
- W2022305513 cites W2010943259 @default.
- W2022305513 cites W2014988061 @default.
- W2022305513 cites W2022020757 @default.
- W2022305513 cites W2023311553 @default.
- W2022305513 cites W2035652767 @default.
- W2022305513 cites W2038391329 @default.
- W2022305513 cites W2038475538 @default.
- W2022305513 cites W2047423823 @default.
- W2022305513 cites W2048696884 @default.
- W2022305513 cites W2054555463 @default.
- W2022305513 cites W2058969317 @default.
- W2022305513 cites W2059434870 @default.
- W2022305513 cites W2060186312 @default.
- W2022305513 cites W2062083462 @default.
- W2022305513 cites W2063425838 @default.
- W2022305513 cites W2072702996 @default.
- W2022305513 cites W2084761689 @default.
- W2022305513 cites W2090516655 @default.
- W2022305513 cites W2109974919 @default.
- W2022305513 cites W2162293803 @default.
- W2022305513 cites W2487417533 @default.
- W2022305513 cites W4253345956 @default.
- W2022305513 cites W891999 @default.
- W2022305513 doi "https://doi.org/10.1016/s0927-7757(99)00394-5" @default.
- W2022305513 hasPublicationYear "2000" @default.
- W2022305513 type Work @default.
- W2022305513 sameAs 2022305513 @default.
- W2022305513 citedByCount "9" @default.
- W2022305513 countsByYear W20223055132020 @default.
- W2022305513 crossrefType "journal-article" @default.
- W2022305513 hasAuthorship W2022305513A5074557429 @default.
- W2022305513 hasConcept C121332964 @default.
- W2022305513 hasConcept C127413603 @default.
- W2022305513 hasConcept C147789679 @default.
- W2022305513 hasConcept C159985019 @default.
- W2022305513 hasConcept C178790620 @default.
- W2022305513 hasConcept C184651966 @default.
- W2022305513 hasConcept C185592680 @default.
- W2022305513 hasConcept C188027245 @default.
- W2022305513 hasConcept C192562407 @default.
- W2022305513 hasConcept C2780471494 @default.
- W2022305513 hasConcept C2780666587 @default.
- W2022305513 hasConcept C3952536 @default.
- W2022305513 hasConcept C42360764 @default.
- W2022305513 hasConcept C521977710 @default.
- W2022305513 hasConcept C69357855 @default.
- W2022305513 hasConcept C97355855 @default.
- W2022305513 hasConceptScore W2022305513C121332964 @default.
- W2022305513 hasConceptScore W2022305513C127413603 @default.
- W2022305513 hasConceptScore W2022305513C147789679 @default.
- W2022305513 hasConceptScore W2022305513C159985019 @default.
- W2022305513 hasConceptScore W2022305513C178790620 @default.
- W2022305513 hasConceptScore W2022305513C184651966 @default.
- W2022305513 hasConceptScore W2022305513C185592680 @default.
- W2022305513 hasConceptScore W2022305513C188027245 @default.
- W2022305513 hasConceptScore W2022305513C192562407 @default.
- W2022305513 hasConceptScore W2022305513C2780471494 @default.
- W2022305513 hasConceptScore W2022305513C2780666587 @default.
- W2022305513 hasConceptScore W2022305513C3952536 @default.
- W2022305513 hasConceptScore W2022305513C42360764 @default.
- W2022305513 hasConceptScore W2022305513C521977710 @default.
- W2022305513 hasConceptScore W2022305513C69357855 @default.
- W2022305513 hasConceptScore W2022305513C97355855 @default.
- W2022305513 hasIssue "1" @default.
- W2022305513 hasLocation W20223055131 @default.
- W2022305513 hasOpenAccess W2022305513 @default.
- W2022305513 hasPrimaryLocation W20223055131 @default.
- W2022305513 hasRelatedWork W1561579722 @default.
- W2022305513 hasRelatedWork W2005723018 @default.
- W2022305513 hasRelatedWork W2088612836 @default.
- W2022305513 hasRelatedWork W2129731325 @default.
- W2022305513 hasRelatedWork W2474842258 @default.
- W2022305513 hasRelatedWork W2763817872 @default.
- W2022305513 hasRelatedWork W326711498 @default.
- W2022305513 hasRelatedWork W4296389124 @default.
- W2022305513 hasRelatedWork W2088858432 @default.