Wagner Natalie, Zimmermann Phyllis, Heisig Peter, Klitsche Franziska, Maison Wolfgang, Theato Patrick
Institute for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstr. 45, D-20146, Hamburg, Germany.
Institute of Biochemistry, Pharmaceutical Biology and Microbiology, University of Hamburg, Bundesstr. 45, D-20146, Hamburg, Germany.
Macromol Biosci. 2015 Dec;15(12):1673-8. doi: 10.1002/mabi.201500196. Epub 2015 Sep 2.
Zwitterionic thin films containing α-amino phosphonic acid moieties were successfully introduced on silicon surfaces and their antifouling properties were investigated. Initially, the substrates were modified with a hybrid polymer, composed of poly(methylsilsesquioxane) (PMSSQ) and poly(4-vinyl benzaldehyde) (PStCHO). Next, a Kabachnik-Fields post-polymerization modification (sur-KF-PMR) of the functionalized aldehyde surfaces was conducted with different amines and dialkyl phosphonates. After subsequent deprotection reaction of dialkyl phosphonates, the obtained zwitterionic surfaces were characterized by various techniques and we found excellent antifouling properties of the resulting films.