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dc.contributor.authorFreydank, A.en
dc.contributor.authorKrasia-Christoforou, T.en
dc.contributor.authorTiddy, G. J. T.en
dc.contributor.authorPatrickios, C. S.en
dc.creatorFreydank, A.en
dc.creatorKrasia-Christoforou, T.en
dc.creatorTiddy, G. J. T.en
dc.creatorPatrickios, C. S.en
dc.date.accessioned2019-05-06T12:23:35Z
dc.date.available2019-05-06T12:23:35Z
dc.date.issued2000
dc.identifier.urihttp://gnosis.library.ucy.ac.cy/handle/7/48345
dc.description.abstractA family of six near-monodisperse homopolymers of sodium methacrylate (Mn = 1100, 3200, 5500, 7200, 14100, and 21000) is characterized by linear salt gradient anion-exchange chromatography. Although the retention times depend on the initial and final salt concentrations of the gradient, they are almost independent of the molecular weight of poly(sodium methacrylate). This suggests that anion-exchange chromatography is incapable of resolving mixtures of a given polyelectrolyte to their components of various molecular weights, and it is therefore impossible to identify the polydispersity of such a sample using this method. The independence of the retention times from molecular weight is also predicted by a theory based on stoichiometric mass-action ion-exchange. Using this theory and our experimental retention times, the equilibrium anion-exchange constant and the corresponding Gibbs free energy of anion-exchange of the monomer repeat unit are calculated to be around 2.1 and -1.8 kJ/mol, respectively.en
dc.language.isoengen
dc.sourceJournal of chromatographic scienceen
dc.subjectarticleen
dc.subjectunclassified drugen
dc.subjectmolecular weighten
dc.subjectsodium chlorideen
dc.subjectstoichiometryen
dc.subjectcalculationen
dc.subjectanion exchange chromatographyen
dc.subjectconcentration (parameters)en
dc.subjectdispersionen
dc.subjection exchangeen
dc.subjectmass actionen
dc.subjectpolyelectrolyteen
dc.subjectpolymethacrylic acid derivativeen
dc.subjectsodium polymethacrylate derivativeen
dc.titleNear-monodisperse sodium polymethacrylates: Characterization by linear salt gradient anion-exchange chromatographyen
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1093/chromsci/38.5.185
dc.description.volume38
dc.description.startingpage185
dc.description.endingpage188
dc.author.facultyΠολυτεχνική Σχολή / Faculty of Engineering
dc.author.departmentΤμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering
dc.type.uhtypeArticleen
dc.contributor.orcidKrasia-Christoforou, T. [0000-0002-9915-491X]
dc.description.totalnumpages185-188


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