Search Results - "KÖHLER, W"

Forced Phase Separation by Laser-Heated Gold Nanoparticles in Thermoresponsive Aqueous PNIPAM Polymer Solutions by Orlishausen, M, Köhler, W

“…We have investigated the formation, growth, and dissolution dynamics of aggregates of the thermoresponsive polymer poly­(N-isopropylacrylamide) (PNIPAM) that…”
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Thermal Diffusion of Dilute Polymer Solutions: The Role of Chain Flexibility and the Effective Segment Size by Stadelmaier, D, Köhler, W

“…We have investigated the influence of the chain length and the size of the Kuhn segment on the thermal diffusion coefficient D T of dilute solutions of…”
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An Unreasonable Universality of the Thermophoretic Velocity by Pur, B, Schock, F, Köhler, W, Morozov, K I

“…Thermophoresis is the migration of dispersed molecules or particles in an inhomogeneous temperature field. It has been associated with various nonequilibrium…”
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Thermocapillary and thermosolutal Marangoni convection of ethanol and ethanol–water mixtures in a microfluidic device by Butzhammer, L., Köhler, W.

“…We have investigated Marangoni convection at an evaporating meniscus of pure ethanol and of ethanol–water mixtures. The experiments were performed in a…”
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Nonlinearities in shadowgraphy experiments on non-equilibrium fluctuations in polymer solutions by Zapf, D., Kantelhardt, J., Köhler, W.

“…Giant thermal and solutal non-equilibrium fluctuations are observed in shadowgraphy experiments on liquid mixtures subjected to a temperature gradient. For…”
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From Small Molecules to High Polymers: Investigation of the Crossover of Thermal Diffusion in Dilute Polystyrene Solutions by Stadelmaier, D, Köhler, W

“…We have studied the crossover from small-molecule to polymer behavior in the Soret effect of dilute solutions of polystyrene in seven different solvents. The…”
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The Measurement of Soret and Thermodiffusion Coefficients in Binary and Ternary Liquid Mixtures by Köhler, W., Mialdun, A., Bou-Ali, M. M., Shevtsova, V.

“…This review provides an overview of the major, currently used techniques for investigating the Soret effect and measuring thermodiffusion and Soret…”
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Global distribution of the thermospheric total mass density derived from CHAMP by Liu, H., Lühr, H., Henize, V., Köhler, W.

“…A global distribution of the thermospheric total mass density at 400 km altitude is derived from the high‐accuracy accelerometer on board the CHAMP satellite…”
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Contribution to the benchmark for ternary mixtures: Measurement of the Soret and thermodiffusion coefficients of tetralin+isobutylbenzene+n-dodecane at a composition of (0.8/0.1/0.1) mass fractions by two-color optical beam deflection by Gebhardt, M., Köhler, W.

“… Within the framework of an international benchmark test we have performed measurements of the Soret and thermodiffusion coefficients of the organic ternary…”
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Thermophobicity of liquids: heats of transport in mixtures as pure component properties by Hartmann, S, Wittko, G, Köhler, W, Morozov, K I, Albers, K, Sadowski, G

“…We have measured the Soret coefficients of 41 out of 45 possible equimolar binary mixtures of 10 different organic solvents and found an additive rule for the…”
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The Soret coefficients of the ternary system water/ethanol/triethylene glycol and its corresponding binary mixtures by Schraml, M., Bataller, H., Bauer, C., Bou-Ali, M. M., Croccolo, F., Lapeira, E., Mialdun, A., Möckel, P., Ndjaka, A. T., Shevtsova, V., Köhler, W.

“…Thermodiffusion in ternary mixtures is considered prototypic for the Soret effect of truly multicomponent systems. We discuss ground-based measurements of the…”
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Diffusion and thermal diffusion of semidilute to concentrated solutions of polystyrene in toluene in the vicinity of the glass transition by Rauch, J, Köhler, W

“…The approaching glass transition in polystyrene/toluene solutions leads to a sharp decay of both the collective diffusion coefficient D and the thermal…”
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Measurement of the Soret, diffusion, and thermal diffusion coefficients of three binary organic benchmark mixtures and of ethanol-water mixtures using a beam deflection technique by Königer, A., Meier, B., Köhler, W.

“…We have measured the Soret (S T ), diffusion (D), and thermal diffusion (D T ) coefficients of three binary mixtures of dodecane (DD), isobutylbenzene (IB) and…”
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Competition between phase transition and thermophoretic expansion of a transient poly(N-isopropylacrylamide) network by Orlishausen, M., Köhler, W.

“… Aqueous solutions of highly entangled ultra-high molar mass ( 2.4×10 6 g/mol) poly(N-isopropylacrylamide) (PNIPAM) have been subjected to an inhomogeneous…”
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Photothermal Deformation of a Transient Polymer Network by Schwaiger, F, Köhler, W

“…Gold nanoparticles (GNPs) are embedded in a highly entangled solution of an ultrahigh molar mass polymer (polystyrene M w = 16 800 kg/mol in toluene). When an…”
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On the Molar Mass Dependence of the Thermal Diffusion Coefficient of Polymer Solutions by Rauch, J, Köhler, W

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The Soret effect in ternary mixtures of water+ethanol+triethylene glycol of equal mass fractions: Ground and microgravity experiments by Triller, T., Sommermann, D., Schraml, M., Sommer, F., Lapeira, E., Bou-Ali, M. M., Köhler, W.

“… Measurements of the Soret and thermodiffusion coefficients of a symmetric ternary mixture with equal mass fractions of water, ethanol, and triethylene glycol…”
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The DCMIX project: Measurement of thermodiffusion processes in ternary mixtures on ground and in space by Schraml, M., Triller, T., Sommermann, D., Köhler, W.

“…Ternary mixtures play an important role as model systems for the understanding of non-isothermal transport phenomena in liquids. The DCMIX project of ESA aims…”
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A Robust Data Evaluation Method for the DCMIX Microgravity Experiments by Sommermann, D., Triller, T., Köhler, W.

“…Measurements of non-isothermal diffusion in ternary mixtures under microgravity conditions are performed in the framework of the DCMIX (Diffusion and…”
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Benchmark values for the Soret, thermodiffusion and molecular diffusion coefficients of the ternary mixture tetralin+isobutylbenzene+n-dodecane with 0.8-0.1-0.1 mass fraction by Bou-Ali, M. M., Ahadi, A., Alonso de Mezquia, D., Galand, Q., Gebhardt, M., Khlybov, O., Köhler, W., Larrañaga, M., Legros, J. C., Lyubimova, T., Mialdun, A., Ryzhkov, I., Saghir, M. Z., Shevtsova, V., Van Vaerenbergh, S.

“…With the aim of providing reliable benchmark values, we have measured the Soret, thermodiffusion and molecular diffusion coefficients for the ternary mixture…”
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