Mende, M., Schwarz, S., Petzold, G., Jaeger, W.
Nonstoichiometric polyelectrolyte complex dispersions (PECs) with different charge excess and hydrophobicity as well as different average hydrodynamic particle size were used to induce flocculation...
Schwarz, S., Jaeger, W., Bratskaya, S., Smolka, N., Bohrisch, J.
The flocculation behaviors of three series of polycations with narrow molecular weight distributions carrying hydrophobic substituents on their backbones [poly(N-vinylbenzyl-N,N,N-trimethylammonium...
Lateral mobility of polyelectrolyte chains in multilayers (2007)
Nazaran, P., Bosio, V., Jaeger, W., Anghel, D.F., Klitzing, R. Von
In this work, the lateral mobility of polyelectrolyte multilayers was investigated by means of the fluorescence recovery after photobleaching (FRAP) technique, with special attention to the effect of...
Kayitmazer, A.B., Strand, S.P., Tribet, C., Jaeger, W., Dubin, P.L.
Electrostatic interactions between synthetic polyelectrolytes and proteins can lead to the formation of dense, macroion-rich liquid phases, with equilibrium microheterogeneities on length scales up...
Lateral mobility of polyelectrolyte chains in multilayers (2007)
Nazaran, P., Bosio, V., Jaeger, W., Anghel, D. F., Von Klitzing, R.
The heartbeat of the volcano : the discovery of episodic activity at Prometheus on Io. (2006)
Davies, A.J., Wilson, Lionel, Matson, D., Leone, G, Keszthelyi, L., Jaeger, W.
The temporal signature of thermal emission from a volcano is a valuable clue to the processes taking place both at and beneath the surface. The Galileo Near Infrared Mapping Spectrometer (NIMS)...
Wasserloesliche ionische Copolymere (2006)
Jaeger, W., Hahn, M., Hollaender, A., Thome, J.
DE 10211561 A UPAB: 20040226 NOVELTY - Water-soluble cationic copolymers with hydrolytically-stable quaternized pyrrolidine units and sec. amine units in the polymer chain. DETAILED DESCRIPTION -...
Jaeger, W., Paulke, B., Schwarz, S., Mende, M.
DE 102005009808 A1 UPAB: 20061002 NOVELTY - Separating suspended solids (A) from aqueous media comprises treatment with a flocculating agent (B) made of polymeric colloidal particles (C) that have a...
Verfahren zur Abtrennung suspendierter Feststoffe (2006)
Jaeger, W., Laschewsky, A., Schwarz, S., Lunkwitz, K., Petzold, G.
DE 102005009809 A1 UPAB: 20061127 NOVELTY - Separating suspended solids from aqueous media comprises mixing the medium with a flocculating agent consisting of a highly-charged cationic...
Roiter, Y., Jaeger, W., Minko, S.
Using AFM single polymer molecule experiments we compare conformations of adsorbed on the mica substrate (in the isoelectric point) polyelectrolyte molecules (PE) of poly(methacryloyloxyethyl...
Schwarz, S., Bratskaya, S., Jaeger, W.
Adsorption and flocculation behavior of two series of synthetic polycations was investigated in dispersions of silica and polystyrene latices with various particle size and surface charge densities....
Formation of polyelectrolyte complexes in a polycarboxybetaine/weak polyanion system (2006)
Schwarz, S., Jaeger, W., Bratskaya, S., Bohrisch, J., Schimmel, T., Mende, M., ...
Polycarboxybetaines - polymers containing a substituted ammonium moiety and a carboxylate group in every monomer units - show in aqueous solutions a pH-dependent intramolecular charge interactions....
Polymeric betaines: Synthesis, characterization, and application (2006)
Kudaibergenov, S., Jaeger, W., Laschewsky, A.
This review summarizes mostly the literature data accumulated during the last decade on betaine-type polyampholytes. Synthetic pathways to polybetaines consisting of radical polymerization, the...
Fest/Flüssig-Trennung mit synthetischen und natürlichen Polymeren (2006)
Schwarz, S., Jaeger, W., Petzold, G., Bratskaya, S., Heinze, T., Liebert, T., ...
Fest/Flüssig-Trennprozesse sind sowohl in der Abwasserbehandlung als auch bei zahlreichen technischen Verfahren von wesentlicher Bedeutung. Die rationelle Durchführung von Koagulations-, Flockungs-...
Rotational spectrum of cyanoacetylene solvated with helium atoms (2006)
Topic, W., Jaeger, W., Blinov, N., Botti, M., Moroni, Saverio
The high resolution microwave spectra of HeN–HCCCN clusters were studied in the size ranges of 1–18 and 25–31. In the absence of an accompanying infrared study, rotational excitation energies...
TEM characterization of La/B4C multilayer systems by the geometric phase method (2005)
Haussler, D., Spiecker, E., Yang, S., Jaeger, W., Störmer, M., Bormann, R., ...
Bohidar, H., Dubin, P.L., Majhi, P.R., Tribet, C., Jaeger, W.
Bovine serum albumin (BSA) and poly(diallyldimethylammonium chloride) (PDADMAC) spontaneously form, over a range of ionic strength I and pH, dense fluids rich in both macroions. To study their...
Ibraeva, Z.E., Hahn, M., Jaeger, W., Laschewsky, A., Bimendina, L.A., Kudaibergenov, S.E.
The swelling behavior of an amphoteric gel composed of 50 mol-% of maleic acid (MA), 25 mol-% of N,N'-dimethyldiallylammonium chloride (DMDAAC) and 25 mol% of diallylamine (DAA) was studied in...
Cationic Polymer Grafted Starch from Nonsymmetrically Substituted Macroinitiators (2005)
Bruzzano, S., Sieverling, N., Wieland, C., Jaeger, W., Thünemann, A., Springer, J.
The aim of this work was the synthesis of starch macroinitiators for cationic polymer grafted starches that: W are free of cationic homopolymer, and (ii) display a high degree of conversion of the...
WAESSRIGE DISPERSION EINES WASSERLOESLICHEN POLYMERS UND VERFAHREN ZU SEINER HERSTELLUNG (2005)
Struck, O., Przybyla, C., Jaeger, W., Hahn, M., Ruppelt, D.
WO2003097703 A UPAB: 20040115 NOVELTY - Water-soluble polymer dispersion comprises a dispersed polymer made up of at least one water-soluble monomer and at least one water-soluble cationic monomer,...
Thünemann, A.F., Kozlowski, C., Storsberg, J., Jaeger, W., Laschewsky, A., Kubowicz, S.
DE1004005304 A UPAB: 20051014 NOVELTY - Amphiphilic block or graft copolymers with heavy element-containing groups attached to the hydrophobic block. DETAILED DESCRIPTION - Amphiphilic block or graft...
Wasserloesliche verzweigte Blockcopolymere (2004)
Jaeger, W., Hahn, M., Lieske, A., Korth, H., Staeck, R., Scordialo, A.
WO2003082938 A UPAB: 20031208 NOVELTY - A water soluble branched copolymer from polymeric backbone chains with quaternary ammonium units, where the backbone chains are mutually linked is new....
New polyelectrolyte architectures (2004)
This chapter reviews recent advances in the synthesis of polyelectrolytes. New results are presented for linear polymers with stiff and flexible backbones and with star-shaped and randomly branched...
Ibraeva, Z.E., Hahn, M., Jaeger, W., Bimendina, L.A., Kudaibergenov, S.E.
Solution properties of alternating polyampholytes based on N,N-dimethyldiallylammonium chloride and maleic acid as well as N,N-dimethyldiallylammonium and maleamic acid (butylmaleamic acid,...
Schwarz, S., Nagel, J., Jaeger, W.
Polyelectrolytes offer a widespread potential for the defined modification of planar inorganic or polymer surfaces. Essential parameters for the regular adsorption of subsequent polymer layers by...
Mende, M., Schwarz, S., Petzold, G., Jaeger, W.
Polyelectrolyte complex (PEC) dispersions formed by fast ionic exchange reaction between polyelectrolytes (PELs) bearing oppositely charged groups have been characterized by turbidity and dynamic...
Short range interactions in polyelectrolyte multilayers (2004)
Klitzing, R. Von, Wong, J.E., Jaeger, W., Steitz, R.
Polymer films consisting of consecutive polyanion and polycation layers are described. Many factors like polymer charge density, ionic strength and type of ion play an important role for the...
The effect of polymer charge density and charge distribution on the formation of multilayers (2003)
Voigt, U., Khrenov, V., Thuer, K., Hahn, M., Jaeger, W., Von Klitzing, R.
Charge effects on the formation of multilayers containing strong polyelectrolytes (2003)
Voigt, U., Jaeger, W., Findenegg, G.H., Klitzing, R. Von
The effect of polymer charge density, polyelectrolyte concentration, and ionic strength on the formation of multilayer films by sequential adsorption of a polyanion (poly(styrene sulfonate), PSS) and...
The effect of polymer charge density and charge distribution on the formation of multilayers (2003)
Voigt, U., Khrenov, V., Tauer, K., Hahn, M., Jaeger, W., Klitzing, R. Von
Polyelectrolyte multilayers which are built up by alternating adsorption of polyanions and polycations from aqueous solutions at a solid interface are investigated by reflectometry and ellipsometry....
Tuning of foam film thickness by different (Poly)electrolyte/surfactant combinations (2003)
Kolaric, B., Jaeger, W., Hedicke, G., Klitzing, R. Von
Disjoining pressure isotherms of free-standing liquid films (foam films) consisting of different polyelectrolyte/surfactant combinations are measured in a thin film pressure balance (TFPB). In...
Chemical contrasting in a single polymer molecule AFM experiment (2003)
Kiriy, A., Gorodyska, G., Minko, S., Tsitsilianis, C., Jaeger, W., Stamm, M.
Interpolyelectrolyte reactions in solutions of polycarboxybetaines (2003)
Izumrudov, V.A., Zelikin, A.N., Zhiryakova, M.V., Jaeger, W., Bohrisch, J.
The utility of different polycarboxybetaines (PCB) as positively charged components of polyelectrolyte complexes was elucidated by potentiometry, turbidimetry, and fluorescence spectroscopy. PCB...
Ultrathin antibacterial polyammonium coatings on polymer surfaces (2003)
Thome, J., Holländer, A., Jaeger, W., Trick, I., Oehr, C.
We have developed novel antibacterial coatings from innocuous polyammonium compounds which are chemically coupled to a polymer surface. For immobilization we used two strategies: In the first...
Bruzzano, S., Sieverling, N., Jaeger, W.
WO2003008473 A UPAB: 20030410 NOVELTY - Starch-based graft copolymers are obtained by reacting amylose derivatives with tertiary alkylazocyanocarboxylic acid derivatives in presence of an acid...
WASSERLOESLICHE VERZWEIGTE BLOCKCOPOLYMERE (2003)
WO 200279282 A UPAB: 20021220 NOVELTY - New water-soluble, branched block copolymers (A) have a polymer backbones of quaternized 1-methyl-3,5-dimethylene-pyrrolidine units (I), linked together by...
Thome, J., Hollaender, A., Jaeger, W., Hahn, M., Trick, I.
DE 10211562 A UPAB: 20040107 NOVELTY - Antimicrobially-modified substrates with an antimicrobial (co)polymer (AP) bound to the substrate directly or via a coupling reagent, where the (co)polymer (AP)...
Galileo SSI observation of Io during orbits C30-I33 (2002)
Keszthelyi, L., Turtle, E., McEwen, A., Simonelli, D., Geissler, P., Williams, D., ...
Hahn, M., Paulke, B., Jaeger, W.
WO 200238639 A UPAB: 20030710 NOVELTY - Stabilizers for polymerization of water-soluble high-molecular vinyl monomers contain water-soluble branched chain copolymer(s) of: (a)...
Klitzing, R. Von, Kolaric, B., Jaeger, W., Brandt, A.
Recently, thin film balance (TFB) measurements have shown that foam films (thickness 5-120 nm) containing polyelectrolytes thin stepwise. This was connected to the ordering of the polyelectrolyte...
Palladium wire-shaped nanoparticles from single synthetic polycation molecules (2002)
Kiriy, A., Minko, S., Gorodyska, G., Stamm, M., Jaeger, W.
Here we described simple chemical route to fabricate wire-shaped metallic nanoparticles of about 5 nm in a diameter and of 1000 nm in a length from single synthetic polycations. The preparation is...
Polyampholyte-dressed micelles of fluorinated and hydrogenated dodecanoic acid (2002)
Thünemann, A.F., Sander, K., Jaeger, W., Dimova, R.
Polyampholytes with alternating cationic and anionic monomers were synthesized and complexed with fatty acids (dodecanoic acid and perfluorododecanoic acid). The formation of the...
Nanoparticles of polyampholyte-surfactant complexes with perfluorododecanoic acid (2002)
Thünemann, A.F., Wendler, U., Jaeger, W., Schnablegger, H.
Polyampholytes were synthesized and complexed with perfluorododecanoic acid. This produces highly fluorinated water-soluble nanoparticles, which are long-term stable. The polyampholytes are...
Kiriy, A., Gorodyska, G., Minko, S., Jaeger, W., Stepanek, P., Stamm, M.
We show that hydrophobic flexible polyelectrolyte molecules of poly(2-vinylpyridine) and poly(methacryloyloxyethyl dimethylbenzylammonium chloride) are trapped and frozen due to adsorption on the...
Effect of charge density on the formation and salt stability of polyelectrolyte complexes (2002)
Cationic copolymers of diallyldimethylammonium chloride (DADMAC) and N-methyl-N-vinylacetamide (NMVA) were synthesized by radical polymerization in a broad range of composition. Since the...
Charge interaction of synthetic polycarboxybetaines in bulk and solution (2002)
Bohrisch, J., Schimmel, T., Engelhardt, H., Jaeger, W.
Various polycarboxybetaines were synthesized using controlled radical polymerization processes followed by polymer analogous transformations. Structural variation of these exclusively aromatic or...
Becker, A., Treuling, U., Gohlke, U., Jaeger, W., Mudersbach, R., Stegmann, S.
DE 10101313 A UPAB: 20010914 NOVELTY - In a filtration process to separate solid, fluid or dissolved substances from a fluid, the substance is passed through one or more compressible filters. The...
Steitz, R., Jaeger, W., Klitzing, R. Von
The influence of ionic strength and polymer charge density on the multilayer formation of strong polyelectrolytes is investigated by X-ray reflectivity. To a first approximation the adsorption...
Novel polyelectrolytes with regular structure-synthesis, properties and applications (2000)
Jaeger, W., Wendler, U., Lieske, A., Bohrisch, J., Wandrey, C.
Characterization of synthetic polyelectrolytes by capillary electrophoresis (2000)
Grosche, O., Bohrisch, J., Wendler, U., Jaeger, W., Engelhardt, H.
Hahn, M., Jaeger, W., Cramm, J.
Water-soluble comb-type branched cationic acrylamide copolymers of formula (I) with high mol. wt., which have side chains formed by acrylamide and a main chain formed by linear cationic prepolymer...
Hahn, M., Jaeger, W., Cramm, J., Whipple, W.
A water-soluble comb-type branched cationic acrylamide copolymers of formula (I) with high mol. wt., which have side chains formed by acrylamide (II) and a main chain formed by linear prepolymer...
Hahn, M., Jaeger, W., Cramm, J.
Comb-type branched polyammonium salts of formula (I) with high mol. wt., have side chains formed by unsatd. quat. ammonium cpd. (II) and a main chain formed by linear prepolymer (III) contg. amino...
Jaeger, W., Zimmermann, A., Hahn, M., Hildebrandt, V., Reichert, K.H.
In the preparation of dispersions of water-soluble vinyl polymers (I) by free radical homo- and/or copolymerisation of water-soluble monomers in an aqueous salt solution containing stabiliser, the...
Application oriented structure variation of cationic block copolymers (1999)
Jaeger, W., Zimmermann, A., Lieske, A., Wendler, U., Bohrisch, J.