Search Results - "ROUILLON, J. C"

Evidence for different polymorphisms with and without an external electric field in a series of bent-shaped molecules by Bedel, J P, Rouillon, J C, Marcerou, J P, Nguyen, H T, Achard, M F

“…Five fluid tilted mesophases are observed in a series of achiral banana-shaped compounds. The terminal chain length is the pertinent molecular parameter which…”
Get full text

Switching of banana liquid crystal mesophases under field by ACHARD, M. F, BEDEL, J. Ph, MARCEROU, J. P, NGUYEN, H. T, ROUILLON, J. C

“…Taking advantage of the great number of bent-core or "banana" compounds synthesized and studied in the laboratory, we describe their behaviour under the…”
Get full text

Optic and electro-optic investigations on SmQ, SmCA and L phases in highly chiral compounds by Manai, M., Gharbi, A., Marcerou, J.P., Nguyen, H.T., Rouillon, J.C.

“…Chiral molecules give rise to a large variety of mesophases. Well-known examples are cholesteric or ferroelectric smectic phases where the chirality tends to…”
Get full text

Electro-optical switching properties for measuring the parameters of a ferroelectric liquid crystal by Essid, S., Manai, M., Gharbi, A., Marcerou, J. P., Rouillon, J. C.

“…We present a description of the reorientation of the macroscopic polarization P S under a switching field in a ferroelectric liquid crystal assuming the…”
Get full text

New switchable smectic phases in banana-shaped compounds by Bedel, J. P., Rouillon, J. C., Marcerou, J. P., Laguerre, M., Nguyen, H. T., Achard, M. F.

“…A new series of achiral compounds with banana-shaped molecules ('E n ') has been synthesized and studied by the classical techniques (optical microscopy,…”
Get full text

Physical characterization of B1 and B2 phases in a newly synthesized series of banana shaped molecules by Bedel, J. P., Rouillon, J. C., Marcerou, J. P., Laguerre, M., Achard, M. F., Nguyen, H. T.

“…A new homologous series of achiral banana-shaped mesogens ('Cn') has been synthesized and studied by classical techniques (optical microscopy, differential…”
Get full text

Banana-shaped molecules derived from substituted isophthalic acids by Nguyen, H. T., Bedel, J. P., Rouillon, J. C., Marcerou, J. P., Achard, M. F.

“…In this paper we present a review of five-rings banana-shaped molecules derived from isophthalic acids. This study deals with about a hundred compounds and…”
Get full text

Nonvanishing of the layer compressional elastic constant at the smetic-A-to-nematic phase transition: A consequence of Landau-Peierls instability? by Benzekri, M, Claverie, T, Marcerou, JP, Rouillon, JC

Get full text

Twist grain boundary A phase in [R]-[-]-1-methyl-heptyl 4′-(3′′-chloro-4′′-n-alkoxybenzoyloxy) biphenyl-4-carboxylates by Kasthuraiah, N., Sadashiva, B. K., Nguyen, H. T., Rouillon, J. C., Isaert, N.

“…Six chiral compounds belonging to the l-methylheptyl 4′-(3′′-chloro-4′′-n- alkoxybenzoyloxy) biphenyl-4-carboxylates have been synthesized. Twist grain…”
Get full text

(E,T) Phase Diagrams in Polar Compounds by Manai, M., Gharbi, A., Essid, S., Achard, M. F., Marcerou, J. P., Nguyen, H. T., Rouillon, J. C.

“…Chiral smectics or banana shaped molecules have attracted much attention due to their ability to present ferroelectric mesophases under field. These properties…”
Get full text

Synthesis and characterization of a novel liquid crystal series with tribenzoate cores and monofluoro-substitution on the phenyl ring near the chiral chain by Essid, S., Manai, M., Gharbi, A., Marcerou, J. P., Rouillon, J. C., Nguyen, H. T.

“…Two new chiral series, with benzoate cores and monofluoro-substitution in positions 2 and 3 of the first phenyl ring near the chiral chain, have been…”
Get full text

Synthesis and mesomorphic properties of a new chiral series with anticlinic and TGB phases by Cruz, C. Da, Rouillon, J. C., Marcerou, J. P., Isaert, N., Nguyen, H. T.

“…A series of difluoro substituted benzoate derivatives: (R)-1-methylheptyl 4-[4-(3-fluoro4-alkyloxybenzoyloxy)-3-fluorobenzoyloxy]benzoates is reported. The…”
Get full text

Frequency behavior of the second-sound damping in the smectic-A phase of octylcyanobiphenyl: evidence for the divergence of viscosities by BAUMANN, C, MARCEROU, J. P, PROST, J, ROUILLON, J. C

Get full text

Direct smectic A-smectic CA phase transition by BEAUBOIS, F., FAYE, V., MARCEROU, J. P., NGUYEN, H. T., ROUILLON, J. C.

“…The anticlinic smectic CA phase belongs to the class of tilted smectic phases with an azimuthal angle alternating from one direction (theta=0) to the other…”
Get full text

Novel mesophases in fluorine substituted banana-shaped mesogens by Bedel, J. P., Rouillon, J. C., Marcerou, J. P., Laguerre, M., Nguyen, H. T., Achard, M. F.

“…A new homologous series of achiral banana-shaped mesogens ('Dn') has been synthesized and studied by the classical techniques (optical microscopy, differential…”
Get full text

Synthesis and mesomorphic properties of a new chiral series with a heterocycle in the molecular core by Da Cruz, C., Rouillon, J. C., Marcerou, J. P., Nguyen, H. T.

“…We report a number of different homologous series with a heterocycle incorporated in the molecular core near the chiral chain. Two of these series differ in…”
Get full text

Optical rotatory power in tilted smectic phases by Beaubois, F., Marcerou, J.P., Nguyen, H.T., Rouillon, J.C.

Get full text

Synthesis, properties and crystal structure of chiral semiperfluorinated liquid crystals with ferro and anticlinic smectic phases by NGUYEN, H. T., ROUILLON, J. C., BABEAU, A., MARCEROU, J. P., ALLOUCHI, H., SIGAUD, G., COTRAIT, M.

“…A new chiral and semiperfluorinated series with ferro and anticlinic properties has been synthesized and characterized. The mesomorphic behaviour has been…”
Get full text

Influence of the position and number of fluorine atoms and of the chiral moiety on a newly synthesized series with anticlinic properties by Cruz, C. Da, Rouillon, J. C., Marcerou, J. P., Isaert, N., Nguyen, H. T.

“…A series of trifluoro-substituted benzoate derivatives: (S)-1-ethylheptyl 4-[4-(4-alkyloxy-3- fluorobenzoyloxy)-3-fluorobenzoyloxy]-2-fluorobenzoates is…”
Get full text

A new series with smectic blue phases and SmC-BPSm2 direct transition by Cruz, C. Da, Grelet, E., Rouillon, J. C., Marcerou, J. P., Sigaud, G., Pansu, B., Nguyen, H. T.

“…A series of trifluoro-substituted benzoate derivatives: (R)-1-methylheptyl 4-[4-(4-alkyloxy3-fluorobenzoyloxy)-3-fluorobenzoyloxy]-3-fluorobenzoates is…”
Get full text