Polymer surface modification via noncovalent binding of functional (macro)molecules [Elektronische Ressource] : investigation of entrapment strategy and mechanism / vorgelegt von Haofei Guo

Polymer Surface Modification via Noncovalent Binding of Functional (Macro)molecules: Investigation of Entrapment Strategy and Mechanism Dissertation Zur Erlangung des akademischen Grades Dr. rer. nat. des Fachbereichs Chemie der Universität Duisburg-Essen vorgelegt von Haofei Guo geboren in Yangzhou, VR China Essen, 2010 Datum der mündlichen Prüfung: 30 November 2010 Vorsitzender: Prof. Dr. Georg Jansen Gutachter: Prof. Dr. Mathias Ulbricht Prof. Dr. Christian Mayer Abstract Entrapment technique, served as one kind of polymer surface functionalization strategies, has been developed in recent decades. All previous studies focused on polar polymer surface modification. In this thesis, aiming to polymer surface hydrophilic and antifouling modification, a variety of (macro)molecules have been applied to entrap into polar polyestersulfone (PES) and nonpolar polypropylene (PP) surface respectively. It was found that the modification conditions for PES are not suitable for PP membrane surface; and the conditions for PP membrane are not exactly effective for PP film. Furthermore, the entrapment mechanism has been studied and discussed. In the beginning of this thesis, polar PES microfiltration (MF) membrane has been used as base polymer. Two different routes, abbreviated as E1 and E2 have been tested for PES surface modification.