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dc.contributor.refereeBinder, Wolfgang H., Prof. Dr.-
dc.contributor.refereeSchmidt, Manfred, Prof. Dr.-
dc.contributor.authorBarqawi, Haitham-
dc.description.abstractDie vorliegende Arbeit zeigt eine Kombination von analytischen Methoden auf Basis von chromatographischen und spekrtometrischen Techniken, die eindeutig die Funktionalitätsverteilung sowie die Molekulargewichtsverteilung von synthetischen Oligomer- und Polymerverbindungen bestimmen kann unter Verwendung einer eigenständig entwickelten Ein- oder Zwei-dimensionalen LC/SEC Kopplung mit massenspektrometrischen Techniken. Somit werden verschiedene synthetische Aspekte quantitativ erfasst, wie z.B. die Effizienz der Endgruppenmodifizierung von oligomeren Harzen und von Poly (ε-caprolacton)en oder die Reinheit von symmetrischen oder unsymmetrischen Triblockcopolymeren bestehend aus Poly(ethylenoxid) und Polyisobutylen.-
dc.description.abstractThe present thesis demonstrates a simple combination of chromatographic methodologies based on one- and two-dimensional systems, which help to identify the functionality type as well as the molar mass distribution of synthetic oligomers and polymers, instantly. Thus, different synthetic aspects such as the efficiencies of the end group modification of amino oligomeric resins and poly(-caprolactone)s as well as the preparation of symmetrical/nonsymmetrical triblock copolymers from polyethylene oxide and polyisobutylene were quantitatively analyzed by one- or two-dimensional LC/SEC coupled to soft ionization mass spectrometric techniques. The straightforward online coupling to electrospary ionization (ESI) source equipped with a time of flight analyzer (TOF) allowed a clear identification of the chemical composition of the investigated samples.eng
dc.description.statementofresponsibilityvon Haitham Barqawi-
dc.format.extentOnline-Ressource (102 Bl. = 43,74 mb)-
dc.publisherUniversitäts- und Landesbibliothek Sachsen-Anhalt-
dc.titleMultidimensional liquid chromatography coupled to soft ionization techniques - analysis of telechelic polymers ; [kumulative Dissertation]-
dc.typeDoctoral Thesis-
local.publisher.universityOrInstitutionMartin-Luther-Universität Halle-Wittenberg-
local.subject.keywordsmultidimensionelle Flüssigchromatographie; Massenspektrometrie; MALDI-TOF-MS; ESI-TOF-MS; LCCC; Polyisobutylen; Polycaprolakton; 2D-LCCC/SEC-MS; Melamin-Harze; LAC-ESI-TOF-MS-
local.subject.keywordsmultidimensional liquid chromatography; mass spectrometry; ; MALDI-TOF-MS; ESI-TOF-MS; LCCC; Polyisobutylene; Polycaprolactone; 2D-LCCC/SEC-MS; melamine-formaldehyde resins; LAC-ESI-TOF-MSeng
Appears in Collections:Chemie und zugeordnete Wissenschaften

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