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289 results on '"Finkelmann, H."'

2. Chirality in Liquid Crystal Elastomers

Author

Stein, P., Finkelmann, H., Lam, Lui, editor, Guyon, Etienne M., editor, Langevin, Dominique, editor, Stanley, H. Eugene, editor, Kitzerow, Heinz-Siegfried, editor, and Bahr, Christian, editor

Published
2001
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10. Enantioselective absorption of chirally doped liquid crystalline networks studied by the use of an electronic microbalance

Author

Palaprat, G., Marty, J.-D., Langevin, D., Finkelmann, H., and Mauzac, M.

Subjects
Chirality -- Analysis, Crosslinked polymers -- Analysis, Cholesterol -- Chemical properties, Chemicals, plastics and rubber industries
Abstract

The analysis of the sorption kinetics of a nonoriented polymer network in which cholesteric order was topologically frozen by cross-linking a nematic polymer in the presence of a cholesteric dopant is reported.

Published
2007

29. Liquid crystal side chain polymers

Author

Finkelmann, H., Rehage, G., Cantow, Hans-Joachim, editor, Dall'Asta, Gino, editor, Dušek, Karel, editor, Ferry, John D., editor, Fujita, Hiroshi, editor, Gordon, Manfred, editor, Henrici-Olivé, Gisela, editor, Kennedy, Joseph P., editor, Kern, Werner, editor, Okamura, Seizo, editor, Olivé, Salvador, editor, Overberger, Charles G., editor, Saegusa, Takeo, editor, Schulz, Günter Victor, editor, Slichter, William P., editor, Stille, John K., editor, and Platé, N. A., editor

Published
1984
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32. Mesomorphic Order in Polymers

Author

ALEXANDRE BLUMSTEIN, S. B. CLOUGH, A. BLUMSTEIN, A. deVRIES, J. H. WENDORFF, H. FINKELMANN, H. RINGSDORF, H. FINKELMANN, H. RINGSDORF, W. SIOL, J. H. WENDORFF, V. P. SHIBAEV, N. A. PLATÉ, Y. S. FREIDZON, A. BLUMSTEIN, Y. OSADA, S. B. CLOUGH, E. C. HSU, R. B. BLUMSTEIN, B. A. NEWMAN, V. FROSINI, P. L. MAGAGNINI, J. C. DUB, Alexandre Blumstein, Robert F. Gould

Published
1978

42. Enantioselective absorption of chirally doped liquid crystalline networks studied by the use of an electronic microbalance

Author

G. Palaprat, Monique Mauzac, J.D. Marty, D. Langevin, and Finkelmann H

Subjects
Materials science, Dopant, Molecular Structure, Diffusion, Enantioselective synthesis, Sorption, Electrons, Stereoisomerism, Fick's laws of diffusion, Surfaces, Coatings and Films, Absorption, Solubility, Liquid crystal, Phenethylamines, Materials Chemistry, Organic chemistry, Physical chemistry, Physical and Theoretical Chemistry, Absorption (chemistry), Enantiomer, Amines
Abstract

A polydomain cholesteric elastomer was obtained by cross-linking a nematic side-chain polysiloxane in the presence of a chiral dopant. After extraction of the chiral dopant, sorption experiments were performed, by the use of an electronic microbalance, in the presence of each enantiomer of a chiral amine molecule. The sorption kinetics corresponds to a Fickian diffusion behavior. They allowed us to determine the diffusion coefficients and to show that the doped polymer has a more pronounced affinity toward one of the enantiomers.

Published
2007

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