Summary
The pore structures of Amberlyst A-21 and of a polystyrene support which is cross linked with 5.6% divinylbenzene2, were investigated using the scanning electron microscope. Both polymers were found to possess a granularly structured surface. However, in Amberlyst A-21 a distinct pore structure is observed in the interior which is not found in the polystyrene support cross linked with 5.6% divinylbenzene. Accordingly Amberlyst A-21 might be macroporous while the other support, which was investigated, appears to be rather a modified type of normally cross linked polystyrene.
Similar content being viewed by others
Literatur
Teil 5:U. Séquin, Experientia29, 1059 (1973).
R. Glaser, U. Séquin undCh. Tamm, Helv. chim. Acta56, 654 (1973).
F. Cramer undH. Köster, Angew. Chem.80, 488 (1968);W. Freist undF. Cramer, Angew. Chem.82, 358 (1970).
L. R. Melby undD. R. Strobach, J. org. Chem.34, 421 (1969).
R. Kunin, Ion Exchange Process Industries, Pap Conf.,1969, (Pub. 1970), 10. Soc. Chemy. Ind.
F. K. Azzola undE. Schmidt, Angew. makromolec. Chem.10, 203 (1970).F. K. Azzola undE. Schmidt, Beitr. elektronenmikroskop. Direktabb. Oberfl.4/2, 635 (1971).
Author information
Authors and Affiliations
Additional information
Wir danken dem “Schweizerischen Nationalfonds zur Förderung der wissenschaftlichen Forschung” (Projekte Nr. 2.460.71 und 2.675.72) für die grosszügige Unterstützung.
Rights and permissions
About this article
Cite this article
Glaser, R., Séquin, U., Tamm, C. et al. Nucleoside und Nucleotide. Teil 6. Rasterelektronenmikroskopische Untersuchungen der Porenstruktur von Amberlyst A-21 und eines mit 5,6% Divinylbenzol vernetzten makroporösen Polystyrols. Experientia 30, 13–15 (1974). https://doi.org/10.1007/BF01921567
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF01921567