Microstructure of polymer hydrogels studied by pulsed field gradient NMR diffusion and TEM methods
Journal article, 2011
The microstructure of various alginate gels have been studied by pulsed field gradient NMR (PFG NMR) and transmission electron microscopy (TEM). The reduced diffusivity of dendrimer diffusion within the gels has been obtained from PFG NMR diffusion experiments. The polymer strand radius, an important microstructural property, has been extracted from various diffusion models. The results agree well with the polymer strand radii obtained from image analysis of the corresponding TEM micrographs.
gels
model
solvent
hindered transport
formulations
nuclear-magnetic-resonance
methanol-water mixtures
alginate
fibrous membranes
composition
gelation
Author
Diana Bernin
SuMo Biomaterials
Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry
G. J. Goudappel
Unilever R&D Vlaardingen
M. van Ruijven
Unilever R&D Vlaardingen
A. Altskär
Swedish Institute for Food and Biotechnology
Anna Ström
Unilever R&D Vlaardingen
Mats Rudemo
Chalmers, Mathematical Sciences, Mathematical Statistics
University of Gothenburg
A. M. Hermansson
Swedish Institute for Food and Biotechnology
Magnus Nydén
Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry
SuMo Biomaterials
Soft Matter
1744-683X (ISSN) 1744-6848 (eISSN)
Vol. 7 12 5711-5716Subject Categories (SSIF 2011)
Chemical Sciences
DOI
10.1039/c1sm05070b