Adsorption of charged macromolecules on oppositely charged porous column materials

Title data

Malinova, Vesela ; Freitag, Ruth ; Wandrey, Christine:
Adsorption of charged macromolecules on oppositely charged porous column materials.
In: Journal of Chromatography A. Vol. 1036 (2004) Issue 1 . - pp. 25-32.
ISSN 0021-9673
DOI: https://doi.org/10.1016/j.chroma.2003.10.087

Official URL:

Abstract in another language

A family of cationic polyelectrolytes possessing defined chain lengths, narrow chain length distributions, uniform charge density, but substituents of different hydrophilicity at the quaternary ammonium group served as model compounds for adsorption studies. These studies quantitatively revealed that polymer characteristics and electrostatic parameters affect the adsorption behavior on oppositely charged porous column materials. The presence of electrostatic exclusion, in addition to size exclusion, was proved comparing molecular, electrostatic and geometrical parameters. The dominance of electrostatic effects could be concluded evaluating the relation between molecular and electrostatic dimensions. The results provide a contribution how to estimate the threshold for electrostatic exclusion from pores as a function of dimensions and experimental conditions.

Further data

Item Type:	Article in a journal
Refereed:	Yes
Additional notes:	16th International Symposium on Preparative and Process Chromatography: Ion Exchange, Adsorption/Desorption Processes and Related Separation Techniques
Keywords:	Polymers
Institutions of the University:	Faculties > Faculty of Engineering Science > Chair Process Biotechnology > Chair Process Biotechnology - Univ.-Prof. Dr. Ruth Freitag Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Process Biotechnology
Result of work at the UBT:	No
DDC Subjects:	500 Science 600 Technology, medicine, applied sciences 600 Technology, medicine, applied sciences > 600 Technology 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited:	25 Feb 2016 14:40
Last Modified:	30 Jun 2022 09:41
URI:	https://eref.uni-bayreuth.de/id/eprint/31059