M. Sc. Rong-Chuan Zhuang

Synthesis of polymers and oligomers containing fluorinated side groups for the construction of hydrophobic surfaces

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http://nbn-resolving.de/urn:nbn:de:swb:14-1120215670616-23184

Kurzfassung in Englisch

Oligomers and polymers based on functionalized Rf-amides were successfully synthesized for the fabrication of hydrophobic surfaces with either linear or network structure. Firstly, new functionalized Rf-amides (RfCONH-, Rf is a perfluoroalkyl segment) were developed in most cases by a one step reaction and a simple work-up procedure. The reaction behaviors of synthesized Rf-amides in polyreactions were well understood. New fluorinated oligoester polyols, blocked IPDI's, and end-hydroxyl terminated oligo(urea urethane)s have been synthesized, the detail structures and properties are well understood. These materials could be suitable components of powder coatings. On the other hand, the end-hydroxyl terminated oligo(urea urethane)s could be used as reactive additives in high solid content and water-borne coatings. Hydrophobic smooth surfaces based on linear polymers, poly(urea urethane)s and alternating MI copolymers, containing fluorinated side groups were successfully constructed. The attachment of fluorinated side groups into polymers can dramatically alter the surfaces of corresponding polymers from more hydrophilic to hydrophobic due to the enrichment of fluorinated side groups on the top of the surface. The backbone configuration, the polarity of backbones, and the thermal treatment on surfaces can influence the surface properties of corresponding materials. Finally, hydrophobic surfaces of cross-linked polyurethanes as model top coatings were constructed under melt condition at high temperature (180 and 190 oC) using the combination of fluorinated oligouretdiones and non-fluorinated oligoester polyols. It was found that the hydrophobicity of resulting cured films is a matter of the competition between the formation of cross-linking network and the segregation of fluoromoieties on the top of the surface.

weitere Metadaten

übersetzter Titel
(Deutsch)
Synthese von Polymeren und Oligomeren mit fluorierten Seitengruppen zur Erzeugung von hydrophoben Oberflächen
Schlagwörter
(Deutsch)
fluorierten Seitengruppen, hydrophoben Oberflächen
Schlagwörter
(Englisch)
fluorinated side group, hydrophobic surface, powder top coating
SWD SchlagworteFluorierung, Grenzfläche, Lipophiles Verhalten, Oligomere, Polymere, Seitenkette
DDC Klassifikation540
RVK KlassifikationVK 8007
Institution(en) 
InstitutionTechnische Universität Dresden
AbteilungMathematik und Naturwissenschaften, Chemie und Lebenmittelchemie, Leibniz Institut für Polymerforschung Dresden e. V.
BetreuerProf. Dr. rer. nat. habil. Brigitte Voit
GutachterProf. Dr. rer. nat. habil. Martin Möller
Prof. Dr. rer. nat. habil. Brigitte Voit
Prof. Dr. rer. nat. habil. Hans-Jürgen Adler
DokumententypDissertation
SpracheEnglisch
Tag d. Einreichung (bei der Fakultät)16.02.2005
Tag d. Verteidigung / Kolloquiums / Prüfung06.06.2005
Veröffentlichungsdatum (online)27.06.2005
persistente URNurn:nbn:de:swb:14-1120215670616-23184

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