Collect. Czech. Chem. Commun. 1981, 46, 1675-1681

Small angle X-ray scattering study of porosity variation in a styrene-divinylbenzene copolymer

Josef Baldriana, Božena N. Kolarzb and Henrik Galinab

a Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences, 162 06 Prague 6, Czechoslovakia
b Institute of Organic and Polymer Technology, Technical University, 50 370 Wroclaw, Poland


Porosity variations induced by swelling agent exchange were studied in a styrene-divinylbenzene copolymer. Standard methods were used in the characterization of copolymer porosity in the dry state and the results were compared with related structural parameters derived from small angle X-ray scattering (SAXS) measurements as developed for the characterization of two-phase systems. The SAXS method was also used for porosity determination in swollen samples. The differences in the porosity of dry samples were found to be an effect of the drying process, while in the swollen state the sample swells and deswells isotropically.