Zeitschriftenartikel:
C. Lomoschitz, B. Feichtenschlager, N. Moszner, M. Puchberger, K. Müller, M. Abele, G. Kickelbick:
"Directing Alkyl Chain Ordering of Functional Phosphorus Coupling Agents on ZrO2";
Langmuir,
27
(2011),
7;
S. 3534
- 3540.
Kurzfassung englisch:
ZrO2 powder (6.6 m2/g) was modified using polymerizable phosphorus-based coupling agents (P-CAs) (i.e., phosphonic acid, phosphoric acid, and bis-phosphonic acid), resulting in densely grafted layers as determined by thermogravimetry and elemental analysis (up to 4.2 molecules/nm2). The applied P-CAs contained a methacrylate group, which led to the covalent incorporation of a polymerizable moiety into the grafted layer. To direct the ordering of the alkyl chains in the layer, three different approaches were evaluated with respect to their structure-directing ability by means of FT-IR and nitrogen sorption at 77 K: (i) variation of the chain length, (ii) variation of the anchoring group and (iii) comodification with a defined amount of a nonfunctional phosphonic acid (variation of the functional/nonfunctional acid ratio). It was shown that the chain length and anchoring group size have significant effects on the alkyl chain ordering and morphology of the layer.
"Offizielle" elektronische Version der Publikation (entsprechend ihrem Digital Object Identifier - DOI)
http://dx.doi.org/10.1021/la104527b
Zugeordnete Projekte:
Projektleitung Guido Kickelbick:
Untersuchung der Wechselwirkungen von Haftkomponenten mit Zirkondioxid- und Edelmetall-Oberflächen sowie Bariumgläsern
Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.