Scientific Commons: Gerhard Wegner

The rational construction of nanocomposites based on so-called hairy-rod macromolecules (HRM) is the objective of this review covering 15 years of extensive research at the Max Planck Institute for...

Polyelectrolyte Networks Based on Poly(Para-phenylene)s: Synthesis, Preparation of Thin Films, and Swelling Behavior (2003)

Ulbrich, D., Meyer, Wolfgang H., Wegner, Gerhard, Prucker, O., Biesalski, M., Rühe, Jürgen

The preparation of poly(para-phenylene) (PPP) derivatives with sulfonate groups and photo cross-linkable side chains is described. These statistical copolymers are used to construct molecularly...

Electronic transport in monolayers of phthalocyanine polymers (2003)

Tans, S. J., Miedema, R. G., Geerligs, L. J., Dekker, C., Wu, J., Neher, Dieter, ...

We report on a study of the electrical-transport properties of monolayers of phthalocyaninepolysiloxane (PcPS) polymers, and evaluate their potential for use as molecular wires. Monolayers have been...

Scanning tunneling microscopy study of graphite oxidation in ozone-air mixtures (2003)

Tracz, A., Wegner, Gerhard, Rabe, J. P.

The early stages of thermal oxidation of the basal plane of highly oriented graphite (HOPG) have been investigated in ozonized air. Scanning tunneling microscopy (STM) was employed to determine the...

PAA/imidazol-based proton conducting polymer electrolytes (2003)

Bozkurt, A., Meyer, Wolfgang H., Wegner, Gerhard

Anhydrous proton conducting polymer electrolytes have been prepared by entrapping imidazol (Im) in polyacrylic acid (PAA) with various stoichiometric ratios, x, to form PAAxIm (x is the number of...

Shape persistence as a concept in the design of macromolecular architectures (2003)

Wegner, Gerhard

Shape persistent macromolecules are objects defined by a time independent overall shape. In most cases such macromolecular objects are characterized by an exterior surface structure and an internal...

Reinforced superabsorbent polyacrylamide hydrogels (2003)

Philippova, O. E., Zaroslov, Y. D., Khokhlov, A. R., Wegner, Gerhard

The ability of linear stiff-chain poly(sodium p-phenylenesulfonate) to self-assemble in aqueous media with the formation of rodlike aggregates was used to immobilize it in a polyacrylamide network...

On the origin of the heterogeneous orientation dynamics of semiflexible polymers in solutions (2002)

Loppinet, B., Fytas, G., Petekidis, G., Sato, T., Wegner, Gerhard

Collective rotational motion in nondilute isotropic solutions of semirigid chains is sensitively probed by depolarized light scattering over a broad time range. The bit-nodal shape and the peculiar...

Self-assembly of polyelectrolyte rods in polymer gel and in solution: Small-angle neutron scattering study (2002)

Zaroslov, Y. D., Gordeliy, V. I., Kuklin, A. I., Islamov, A. H., Philippova, O. E., Khokhlov, A. R., ...

Self-aggregation of rigid-rod poly(sodium p-phenylenesulfonate) in aqueous solution and inside water-swollen polyacrylamide gel was studied by small-angle neutron scattering. It was shown that both...

Formation of uniform and monodisperse zincite crystals in the presence of soluble starch (2002)

Taubert, A., Wegner, Gerhard

A novel procedure for the formation of uniform, monodisperse, and single-phase zincite particles using soluble starch as crystallization additive is reported. At low starch concentrations, roughly...

Proton transport in polybenzimidazole blended with H3PO4 or H2SO4 (2002)

Pu, H. T., Meyer, Wolfgang H., Wegner, Gerhard

Proton transport in H3PO4- and H2SO4-blended polybenzimidazoles (PBIs) has been studied with both temperature- and pressure- dependent dielectric spectroscopy. The influences of the acid...

Constrained dynamics in supramolecular structures of poly(p- phenylenes) with ethylene oxide side chains: A combined dielectric and nuclear magnetic resonance investigation (2002)

Mierzwa, M., Floudas, G., Neidhöfer, M., Graf, Robert, Spiess, Hans Wolfgang, Meyer, Wolfgang H., ...

The complex dynamics in supramolecular structures of poly(p- phenylenes) with short ethylene oxide (EO) side chains (known as "hairy rods") have been studied by combining temperature and pressure...

Preparation and modification of poly(methacrylic acid) and poly(acrylic acid) multilayers (2002)

Mengel, C., Esker, A. R., Meyer, Wolfgang H., Wegner, Gerhard

By employment of a strategy of post-transfer modification, precursor Langmuir-Blodgett (LB) films of poly(tert-butyl methacrylate) (PtBMA) and poly(tert-butylacrylate) (PtBA) can be converted to...

Ultrathin layers of polyelectrolytes on mica: Preparation, characterization, and electrokinetic surface potential (2002)

Sterthaus, R., Wegner, Gerhard

We report on the preparation of ultrathin polyelectrolyte network films on solid substrates, particularly on mica. This supramolecular construct serves as a useful model of ionogenic surfaces in...

Nachruf auf Kurt Hansen (2002)

Wegner, Gerhard

Polymers Designed to Control Nucleation and Growth of Inorganic Crystals from Aqueous Media (2001)

Wegner, Gerhard, Baum, P., Müller, M., Norwig, Jochen, Landfester, Katharina

Block copolymer micelles as seed in emulsion polymerization (1999)

Rager, T., Meyer, Wolfgang H., Wegner, Gerhard, Mathauer, K., Mächtle, W., Schrof, W., ...

Design, Characterization and Processing of Cellulose-S-Acetyl: A Precursor to an Electroactive Cellulose (1998)

D'Aprano, G., Henry, C., Godt, Adelheid, Wegner, Gerhard

Ultrathin Films of a Polyelectrolyte with Layered Architecture (1998)

Esker, A. R., Mengel, C., Wegner, Gerhard

Electromechanical Properties of an Ultrathin Layer of Directionally Aligned Helical Polypeptides (1998)

Jaworek, T., Neher, Dieter, Wegner, Gerhard, Wieringa, R. H., Schouten, A. J.

Synthesis and X-ray Characterization of Alkoxy-Substituted Aromatic Polyesters Containing Terphenyl or Quinquephenyl Units in the Main Chain (1998)

Kakali, F., Kallitsis, J., Pakula, Tadeusz, Wegner, Gerhard

Supramolecular Structures of Poly(p-Phenylene)s with Oxyethylene Side Chains and their Mixtures with Lithium Salts (1998)

Lauter, U., Meyer, Wolfgang H., Enkelmann, Volker, Wegner, Gerhard

Laser Light Scattering Study of a Rigid-Rod Polyelectrolyte (1998)

Liu, T. B., Rulkens, R., Wegner, Gerhard, Chu, B.

Immobilization of Biomolecules on Langmuir-Blodgett Films of Regenerative Cellulose Derivatives (1998)

Löscher, F., Ruckstuhl, T., Jaworek, T., Wegner, Gerhard, Seeger, S.

What does Materials Science Learn from Conjugated Oligomers? (1998)

Müllen, Klaus, Wegner, Gerhard

Control of ZnO Crystallization by a PEO-b-PMAA Diblock Copolymer (1998)

Öner, M., Norwig, Jochen, Meyer, Wolfgang H., Wegner, Gerhard

Orientation Dynamics and Correlations in Hairy-Rod Polymers: Concentrated Regime (1998)

Petekidis, G., Vlassopoulos, D., Fytas, G., Rulkens, R., Wegner, Gerhard

Diffusion Dynamics of Hairy-Rod Polymers in Concentrated Solutions (1998)

Petekidis, G., Vlassopoulos, D., Fytas, G., Rulkens, R., Wegner, Gerhard, Fleischer, G.

Polyacrylamide Hydrogels with Trapped Polyelectrolyte Rods (1998)

Philippova, O. E., Rulkens, R., Kovtunenko, B. I., Abramchuk, S. S., Khokhlov, A. R., Wegner, Gerhard

Influence of Chain Length on the Molecular Dynamics of an Aliphatic Ionene (1998)

Reisinger, T. J. G., Meyer, Wolfgang H., Wegner, Gerhard, Haase, T., Schultes, K., Wolf, B. A.

High Pressure Investigations of the Ion Conductivity in Ionene Polymers (1998)

Reisinger, T. J. G., Meyer, Wolfgang H., Wegner, Gerhard

Supramolecular Architectures of Cellulose Derivatives (1998)

Schulze, M., Seufert, M., Fakirov, C., Tebbe, H., Buchholz, V., Wegner, Gerhard

MALDI-TOF-MS Copolymer Analysis: Characterization of a Poly(dimethylsiloxane)-co-Poly(hydromethylsiloxane) as a Precursor of a Functionalized Silicone Graft Copolymer (1998)

Servaty, S., Köhler, Werner, Meyer, Wolfgang H., Rosenauer, C., Spickermann, J., Räder, Hans Joachim, ...

Electrical Conductivity of Highly Organized Langmuir-Blodgett Films of Phthalocyaninato-Polysiloxane (1998)

Silerova (Back), R., Kalvoda, L., Neher, Dieter, Ferencz, A., Wu, J., Wegner, Gerhard

Molecules Adopting an Inverted U-Shape on Water Surface by Self-Assembling into Crystalline Monolayers (1998)

Weissbuch, I., Lahav, M., Leiserowitz, L., Lederer, K., Godt, Adelheid, Wegner, Gerhard, ...

Electromechanical properties of anisotrope ultrathin layers of polyglutamates (1998)

Jaworek, T., Glasser, G., Wieringa, R. H., Schouten, A. J., Wegner, Gerhard, Neher, Dieter

Studies of structure and local wetting properties on heterogeneous, micropatterned solid surfaces by microinterferometry (1997)

Wiegand, G., Jaworek, T., Wegner, Gerhard, Sackmann, E.

Textures and defects of the hexagonal columnar phase of phthalocyaninato-poly(siloxane) derivatives (PCPS) (1997)

Ries, R., Lieser, Günter, Schwiegk, S., Wegner, Gerhard

Functionalized poly- and oligo-phenylenes: Variations on the Suzuki cross-coupling of functionalized aryl dibromides with the 1,3-propanediol diester of 2,5-dialkyl-1,4-phenylenediboronic acid (1997)

Kowitz, C., Wegner, Gerhard

Chain conformation and packing of isopentylcellulose in thin films (1997)

Fakirov, C., Lieser, Günter, Wegner, Gerhard

Stabilization of aqueous alpha-Al2O3 suspensions with block copolymers (1997)

Orth, J., Meyer, Wolfgang H., Bellmann, C., Wegner, Gerhard

Influence of chain length and salt concentration on block copolymer micellization (1997)

Rager, T., Meyer, Wolfgang H., Wegner, Gerhard, Winnik, M. A.

Ultrathin cellulose ether network as a host matrix for alkylthiophene polymerization (1997)

Henry, C. D., Tebbe, H., Wegner, Gerhard, Armand, F., Ruaudel-Teixier, A.

Photo-cross-linkable poly(p-phenylene)s. Synthesis, Langmuir-Blodgett multilayer film properties and pattern formation (1997)

Remmers, M., Neher, Dieter, Wegner, Gerhard

Supramolecular architectures of cellulose derivatives (1997)

Schulze, M., Seufert, M., Fakirov, C., Tebbe, H., Buchholz, V., Wegner, Gerhard

Heterogeneous surfaces of structured hairy-rod polymer films: Preparation and methods of functionalization (1997)

Wiegand, G., Jaworek, T., Wegner, Gerhard, Sackmann, E.

Regeneration and hydroxyl accessibility of cellulose in ultrathin films (1997)

Buchholz, V., Adler, P., Backer, M., Holle, W., Simon, A., Wegner, Gerhard

Crystallization of CaCO3 in the presence of PEO-block-PMAA copolymers (1997)

Marentette, J. M., Norwig, Jochen, Stöckelmann, E., Meyer, Wolfgang H., Wegner, Gerhard

Deposition and atomic force microscopy of individual phthalocyanine polymers between nanofabricated electrodes (1997)

Tans, S. J., Geerligs, L. J., Dekker, C., Wu, J., Wegner, Gerhard

Molecular composites from rigid-rod poly(p-phenylene)s with oligo(oxyethylene) side chains as novel polymer electrolytes (1997)

Lauter, U., Meyer, Wolfgang H., Wegner, Gerhard

Room temperature silicon wafer bonding with ultra-thin polymer films (1997)

Kräuter, G., Schumacher, A., Gösele, U., Jaworek, T., Wegner, Gerhard

Structure and stability of two-component Langmuir-Blodgett multilayers containing cadmium arachidate and polyglutamate determined by reflectivity (1997)

Vierheller, T. R., Foster, M. D., Schmidt, A., Mathauer, K., Knoll, Wolfgang, Wegner, Gerhard, ...

Wirtschaftspolitik zwischen Selbst- und Fremdsteuerung : ein neuer Ansatz / (1996)

Wegner, Gerhard.

Zugl.: Witten, Herdecke, Universiẗat, Habil.-Schr., 1995.

Langmuir-Blodgett mono- and multilayers of preformed poly(octadecyl methacrylate)s, 1. Surface-area isotherms of atactic and isotactic poly(octadecyl methacrylate)s and transfer into multilayers (1991)

Schouten, Arend Jan, Wegner, Gerhard

In order to elucidate some of the parameters controlling the transfer of compressed monomolecular layers of preformed poly(octadecyl methacrylate)s (PODMA) onto substrates by the so-called...

Langmuir-Blodgett mono- and multilayers of preformed poly(octadecyl methacrylate)s, 2. Structural studies by IR spectroscopy and small-angle X-ray scattering (1991)

Arndt, Thomas, Schouten, Arend Jan, Schmidt, Günther F., Wegner, Gerhard

Langmuir-Blodgett (LB) mono- and multilayers of preformed atactic and isotactic poly(octadecyl methacrylate)s were studied on gold surfaces and silicon wafers. The average orientation of the carbonyl...

Welchen Schutz gewährt der [paragraph or section mark] 147,3 der Reichsgewerbeordnung dem zahnärztlichen Titel? / (1923)

Wegner, Gerhard.

Mikrokopie (1 Mikrofiche : 24x)

Political Learning: The Neglected Precondition of Constitutional Reform

Gerhard Wegner

This paper analyses the claim of constitutional economics that liberal economic policy requires far-reaching constitutional reform. The paper starts with a restatement of this claim and reinforces...

Gerhard Wegner

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