@misc{BiddleRickertLandoetal.1989,
  author    = {Biddle, M. B. and Rickert, S. E. and Lando, J. B. and Laschewsky, Andr{\´e}},
  title     = {The use of the Langmuir-Blodgett technique to obtain ultra-thin polar films},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17185},
  year      = {1989},
  abstract  = {The piezoelectric and pyroelectric properties of oriented films possessing dipole moments are increasingly being used in pressure, acoustic, thermal and optical devices. The performance of these devices in many applications may be enhanced by thin-film technology.The developing Langmuir-Blodgett thin-film deposition technique offers the opportunity to obtain highly oriented and uniform organic-based films in the 10-5000 nm thickness range. Special techniques must be used, however, to assemble these molecules in such a way as to result in polar multilayer films. Several possible deposition techniques are investigated, with one resulting in a polar and pyroelectric film about 50 nm thick.},
  language  = {en}
}
@misc{TsukrukMischenkoKoeberleetal.1992,
  author    = {Tsukruk, Vladimir and Mischenko, Nikolay and K{\"o}berle, Peter and Laschewsky, Andr{\´e}},
  title     = {The structural order of some novel ionic polymers; 2. : Models of molecular packing},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17256},
  year      = {1992},
  abstract  = {The molecular packing and spatial correlations of two isomeric zwitterionic polymethacrylates and one polyacrylate analog are studied by means of X-ray analysis and conformational calculations. The analysis of the correlation functions and density distribution profiles suggest a double-layered molecular packing which is discussed for the three polymers investigated, with respect to their different chemical structures. Whereas the zwitterionic polymethacrylates studied exhibit liquid-like short-range order, the polyacrylate analog exhibits an ordered double-layered superstructure.},
  language  = {en}
}
@misc{ElbertLaschewskyRingsdorf1985,
  author    = {Elbert, R. and Laschewsky, Andr{\´e} and Ringsdorf, H.},
  title     = {Hydrophilic spacer groups in polymerizable lipids: formation of biomembrane models from bulk polymerized lipids},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17361},
  year      = {1985},
  abstract  = {A variety of polymerizable lipids containing a hydrophilic spacer group between the reactive group and the main amphiphilic structure have been synthesized. They were investigated in monolayers, liposomes, and multilayers. When the spacer concept was used, efficient decoupling of the motions of the polymeric chain and the amphiphilic side groups is achieved. Thus, the often found loss of the important fluid phases by polymerization is avoided. Polymeric monolayers of the spacer lipid, prepared either by polymerization in the monolayer or by spreading of prepolymerized lipid, exhibit nearly identical surface pressure-area diagrams. Most distinctly, the successful decoupling of the motions of the polymer main chain and the membrane forming amphiphilic side groups is demonstrated by the self-organization of bulk polymerized spacer lipids to polymeric liposomes. In addition, spacer lipids are able to build polymeric Langmuir-Blodgett multilayers. The decoupling of the polymer main chain and the membrane-forming amphiphilic side groups enables the deposition of already polymeric monolayers onto supports to form defined multilayers. If, alternatively, monomeric monolayers are deposited and polymerized on the support, defects in the layers due to structural changes during the polymerization are avoided by the flexible spacer group.},
  language  = {en}
}
@misc{LupoPrassScheunemannetal.1988,
  author    = {Lupo, Donald and Prass, Werner and Scheunemann, Ude and Laschewsky, Andr{\´e} and Ringsdorf, Helmut and Ledoux, Isabelle},
  title     = {Second-harmonic generation in Langmuir-Blodgett monolayers of stilbazium salt and phenylhydrazone dyes},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17401},
  year      = {1988},
  abstract  = {Contents: 1. INTRODUCTION 2. SYNTHESIS OF THE COMPOUNDS 3. PREPARATION AND CHARACTERIZATION OF MONOLAYERS A. Monolayer Isotherms B. Langmuir-Blodgett Monolayer Films 4. EXPERIMENTAL SETUP FOR NONLINEAR MEASUREMENTS 5. NONLINEAR OPTICAL PROPERTIES 6. DISCUSSION 7. CONCLUSION},
  language  = {en}
}
@misc{RozanskiKremerKoeberleetal.1995,
  author    = {Rozanski, Stanislaw A. and Kremer, Friedrich and K{\"o}berle, Peter and Laschewsky, Andr{\´e}},
  title     = {Relaxation and charge transport in mixtures of zwitterionic polymers and inorganic salts},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17438},
  year      = {1995},
  abstract  = {Dielectric spectroscopy is employed to analyze the molecular dynamics and the charge transport in mixtures of zwitterionic polymers of the type poly{3 [N(-methacryloyloxyalkyl)] N, [N-dimethylammonio propanesulfonate] with sodium iodide in the frequency range of 10²Hz-10(up)7 Hz and in the temperature range of 110 K-400 K. The amount of inorganic salt added varies from 0-200 mol-\% relative to the number of zwitterionic groups present in the polymer, contributing strongly to the conductivity. One relaxation process is observed whose relaxation rate depends strongly on the length of the aliphatic spacer between the polymethacrylate main chain and the zwitterionic group. Exhibiting an Arrhenius-like temperature depence with activation energy EA = 47 KJ/mol, this relaxation process is assigned to fluctuation of the quaternary ammonium groups in the side chains. At higher temperatures, the dielectric properties and the conductivity are primarily dominated by the mobile inorganic ions: conductivity strongly depends on the salt concentration, showing a pronounced electrode polarization effect. The frequency and salt concentration, dependences of the conductivity can be quantitatively described as hopping of charge carriers being subject to spatially randomly varying energy barriers. For the low-frequency regime and for the critical frequency marking the onset of the conductivity's dispersion, the Barton-Nakajima-Namikawa (BNN) relationship is fulfilled.},
  language  = {en}
}
@misc{LaschewskySchulzHanke1993,
  author    = {Laschewsky, Andr{\´e} and Schulz-Hanke, Wolfgang},
  title     = {Ring-opening metathesis polymerization of amphiphilic norbornenes functionalized with non-linear optical (NLO) chromophores},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-26917},
  year      = {1993},
  abstract  = {Contents: Potential of amphiphilic NLO polymers Ring-opening metathesis polymerization (ROMP) Properties of the polymers Monolayer properties Experimental part - Methods - Materials - Analytical data - General polymerization procedure Conclusions},
  language  = {en}
}
@misc{AntonLaschewsky1993,
  author    = {Anton, Peter and Laschewsky, Andr{\´e}},
  title     = {Zwitterionic polysoaps with reduced density of surfactant side groups},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17301},
  year      = {1993},
  abstract  = {Several zwitterionic polymers were prepared by radical homopolymerization of surfactant monomers which bear diallyl, diene or vinylcyclopropane moieties. These polymer systems were complemented by alternating copolymers of appropriate zwitterionic vinyl compounds. Thus, polymers with reduced (as compared with simple vinylic homopolymers, or statistical copolymers) and well defined density of surfactant side groups are obtained. The solubilities found for these polymers are dominated by polymer geometry rather than by the balance of hydrophilic and hydrophobic fragments, thus corroborating a main-chain spacer model proposed recently. All water-soluble polymers exhibit characteristic features of classical polysoaps, as shown by surface tension measurements and by solubilization of hydrophobic dyes. In contrast, the water-insoluble copolymers are capable to form stable monolayers at the air-water interface.},
  language  = {en}
}
@misc{AntonKoeberleLaschewsky1993,
  author    = {Anton, Peter and K{\"o}berle, Peter and Laschewsky, Andr{\´e}},
  title     = {Recent developments in the field of micellar polymers},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17263},
  year      = {1993},
  abstract  = {This article describes recent achievements in the field of micellar polymers, or polysoaps. Taking advantage of zwitterionic model polymers, systematic variations of the molecular architecture have provided an improved understanding of the relationship between the molecular structure of the polymers and their key properties such as surface activity and solubilization capacity. Useful rules are established, which take into account much of the previous data in the literature.},
  language  = {en}
}
@misc{KoeberleLaschewskyTsukruk1992,
  author    = {K{\"o}berle, Peter and Laschewsky, Andr{\´e} and Tsukruk, Vladimir},
  title     = {The structural order of some novel ionic polymers : 1. X-ray scattering studies},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17247},
  year      = {1992},
  abstract  = {A set of novel zwitterionic side-chain polyacrylates and polymethacrylates is studied by X-ray scattering. The structural order both in the short-range and long-range scale is investigated. The influence of the polymer backbone, of different locations of the ionic groups in isomeric polymers, of bound water and of added inorganic salts on the bulk structures is studied, and the observed rearrangements are analysed.},
  language  = {en}
}
@misc{AntonLaschewsky1991,
  author    = {Anton, Peter and Laschewsky, Andr{\´e}},
  title     = {Polysoaps via alternating olefin/SO2 copolymers},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17216},
  year      = {1991},
  abstract  = {Contents: Introduction Results and discussion - Monomers studied - Monomer properties - Polymerization, copolymer composition and general properties - Polymer properties in aqueous solution Conclusion Experimental part - Materials - Copolymerization with S02 (typical procedure) - Methods},
  language  = {en}
}
@misc{Laschewsky1995,
  author    = {Laschewsky, Andr{\´e}},
  title     = {Molecular concepts, self-organisation and properties of polysoaps},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-26895},
  year      = {1995},
  abstract  = {The article reviews water-soluble polymers characterized by surfactant side chains, and related amphiphilic polymers. Various synthetic approaches are presented, and rules for useful molecular architectures are given. Models for the self-organization of such polymers in water are presented comparing them with the micellization of low molecular weight surfactants. Highlighting key properties of aqueous polysoap solutions such as viscosity, surface tension and solubilization power, some structure-property relationships are established. Further, the formation of mesophases and of superstructures in bulk is addressed. Finally, the functionalization of polysoaps, and potential applications are discussed.},
  language  = {en}
}
@misc{KoeberleLaschewsky1994,
  author    = {K{\"o}berle, Peter and Laschewsky, Andr{\´e}},
  title     = {Hybrid materials from organic polymers and inorganic salts},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-26884},
  year      = {1994},
  abstract  = {The prepaparation of amorphous, homogeneous blends of zwitterionic polymers and transition metal salts was investigated. Homogeneous miscibility was achieved in many cases up to equimolar amounts of salt, depending on the anion and cation chosen. Various analytical techniques point to a solid state solution of the inorganic ions in the polymer matrix.},
  language  = {en}
}
@misc{CochinHendlingerLaschewsky1995,
  author    = {Cochin, Didier and Hendlinger, P. and Laschewsky, Andr{\´e}},
  title     = {Polysoaps with fluorocarbon hydrophobic chains},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17347},
  year      = {1995},
  abstract  = {A series of amphiphilic copolymers is prepared by copolymerization of choline methacrylate with 1,1,2,2-tetrahydroperfluorooctyl methacrylate in varying amounts. The copolymers bearing fluorocarbon chains are studied concerning their effects on viscosity, solubilization and surface activity in aqueous solution, exhibiting a general behavior characteristic for polysoaps. The results are compared with the ones obtained for an analogous series of amphiphilic copolymers bearing hydrocarbon chains.},
  language  = {en}
}
@misc{AntonLaschewskyWard1995,
  author    = {Anton, Peter and Laschewsky, Andr{\´e} and Ward, M. D.},
  title     = {Solubilization control by redox-switching of polysoaps},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17336},
  year      = {1995},
  abstract  = {Reversible changes in the self-organization of polysoaps may be induced by controlling their charge numbers via covalently bound redox moieties. This is illustrated with two viologen polysoaps, which in response to an electrochemical stimulus, change their solubility and aggregation in water, leading from homogeneously dissolved and aggregated molecules to collapsed ones and vice verse. Using the electrochemical quartz crystal microbalance (EQCM), it could be shown that the reversibility of this process is better than 95\% in 16 cycles.},
  language  = {en}
}
@misc{AntonLaschewsky1994,
  author    = {Anton, Peter and Laschewsky, Andr{\´e}},
  title     = {Solubilization by polysoaps},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17327},
  year      = {1994},
  abstract  = {The aqueous solubilization power of several series of micellar homopolymers and copolymers (polysoaps) is investigated. Using five insoluble or poorly water-soluble dyes, comparisons of the capacities are made with respect ot the influence of structural variables such as the polymer backbone, the polymer geometry, the comonomer content, and the charge of the hydrophilic group. Some guidelines for polysoap structures suited for efficient solubilization are established. Noteworthy is that the solubilization capacities of the polysoaps are neither linked to the ability to reduce the surface tension of water, nor to the polarity of the solubilization sites deduced from spectroscopic probes.},
  language  = {en}
}
@misc{BubeckLaschewskyLupoetal.1991,
  author    = {Bubeck, Christoph and Laschewsky, Andr{\´e} and Lupo, Donald and Neher, Dieter and Ottenbreit, Petra and Paulus, Wolfgang and Prass, Werner and Ringsdorf, Helmut and Wegner, Gerhard},
  title     = {Amphiphilic dyes for nonlinear optics: Dependence of second harmonic generation on functional group substitution},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17201},
  year      = {1991},
  language  = {en}
}
@misc{EmbsFunhoffLaschewskyetal.1991,
  author    = {Embs, Frank and Funhoff, Dirk and Laschewsky, Andr{\´e} and Licht, Ulrike and Ohst, Holger and Prass, Werner and Ringsdorf, Helmut and Wegner, Gerhard and Wehrmann, Rolf},
  title     = {Preformed polymers for Langmuir-Blodgett films- molecular concepts},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17196},
  year      = {1991},
  abstract  = {The use of preformed polymers for the preparation of Langmuir-Blodgett (LB) multilayers is reviewed. Principles for polymer self-organization are outlined and the appropriate molecular designs are discussed. Recent developments in the different classes of polymers for LB multilayers are presented, and their outstanding properties highlighted.},
  language  = {en}
}
@misc{ErdelenLaschewskyRingsdorfetal.1989,
  author    = {Erdelen, C. and Laschewsky, Andr{\´e} and Ringsdorf, H. and Schneider, J. and Schuster, A.},
  title     = {Thermal behaviour of polymeric Langmuir-Blodgett multilayers},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17378},
  year      = {1989},
  abstract  = {Langmuir-Blodgett multilayers of hydrocarbon and fluorocarbon polymers with hydrophilic spacer, lipid-polyelectrolyte complexes and mesogenic polymers have been prepared. The thermal behaviour of the multilayers was studied by small angle X-ray scattering, IR and UV—visible spectroscopy. Good thermal stabilities were found for the various classes of polymers. In addition, for both complexed multilayers and mesogenic polymer films, reorientation processes were observed.},
  language  = {en}
}
@misc{AlbrechtCummingKreuderetal.1986,
  author    = {Albrecht, O. and Cumming, W. and Kreuder, W. and Laschewsky, Andr{\´e} and Ringsdorf, Helmut},
  title     = {Monolayers of rod-shaped and disc-shaped liquid crystalline compounds at the air-water interface},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17124},
  year      = {1986},
  abstract  = {Calamitic (rod-shaped) and discotic (disc-shaped) thermotropic liquid crystalline (LC) compounds were spread at the air-water interface, and their ability to form monolayers was studied. The calamitic LCs investigated were found to form monolayers which behave analogously to conventional amphiphiles such as fatty acids. The spreading of the discotic LCs produced monolayers as well, but with a behaviour different from classical amphiphiles. The areas occupied per molecule are too small to allow the contact of all hydrophilic groups with the water surface and the packing of all hydrophobic chains. Various molecular arrangements of the discotics at the water surface to fit the spreading data are discussed.},
  language  = {en}
}
@misc{KochLaschewskyRingsdorfetal.1986,
  author    = {Koch, Horst and Laschewsky, Andr{\´e} and Ringsdorf, Helmut and Teng, Kang},
  title     = {Photodimerization and photopolymerization of amphiphilic cinnamic acid derivatives in oriented monolayers, vesicles and solution},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17111},
  year      = {1986},
  abstract  = {Cinnamic acid moieties were incorporated into amphiphilic compounds containing one and two alkyl chains. These lipid-like compounds with photoreactive units undergo self-organization to form monolayers at the gas-water interface and bilayer structures (vesicles) in aqueous solutions. The photoreaction of the cinnamic acid moiety induced by 254 nm UV light was investigated in the crystalline state, in monolayers, in vesicles and in solution in organic solvents. The single-chain amphiphiles undergo dimerization to yield photoproducts with twice the molecular weight of the corresponding monomers in organized systems. The photoreaction of amphiphiles containing two cinnamic acid groups occurs via two mechanisms: The intramolecular dimerization produces bicycles, with retention of the molecular weight of the corresponding monomer. The intermolecular reaction leads to oligomeric and polymeric photoproducts. In contrast to the single-chain amphiphiles, photodimerization processes of lipoids containing two cinnamic acid moieties also occur in solution in organic solvents.},
  language  = {en}
}