Dresden 2011 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 3: Interfaces and Thin Films I
CPP 3.5: Vortrag
Montag, 14. März 2011, 11:30–11:45, ZEU 160
Ferrocene-Pyridine Block Copolymers at the Air/Water Interface and in Solution — •Martin Müller1, Markus Gallei2, Roland Klein2, Bernd Stühn1, and Matthias Rehahn2 — 1Institut für Festkörperphysik, TU Darmstadt — 2Ernst-Berl-Institut für Technische und Makromolekulare Chemie, TU Darmstadt
Ferrocene-containing polymers attract much attention because of their unique mechanical, (electro)chemical, (opto)electronical or magnetic properties [1]. We present structural investigations of the block copolymer poly(vinylferrocene-b-(2-vinylpyridine)) (PVFc-b-P2VP) [2]. Langmuir technique and in-situ X-Ray reflectivity on the water/gas interface were used to investigate the surface properties and conformations as a function of molecular weight (brush regimes and mushroomlike structures). In addition time dependent X-Ray reflectivity revealed surface structure relaxations of the pyridine blocks at the air/water interface. SAXS was used to determine structure of the PVFc-b-P2VP solutions. The results indicate the formation of vesicles with relative narrow size distributions. Combining the different methods leads to a detailed understanding of PVFc-P2VP structures.
[1] G. R. Whittell, I. Manners, Adv. Mater. 2007, 19, 3439
[2] M. Gallei et al. Macromolecules, 2010, 43 (4), 1844-1854