Search Results - "Natansohn, Almeria"

Photoinduced Motions in Azo-Containing Polymers by Natansohn, Almeria, Rochon, Paul

“…Natansohn and Rochon offer a general overview of the area of motions generated by azobenzene isomerization in polymer materials…”
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Photoinduced Chirality in Thin Films of Achiral Polymer Liquid Crystals Containing Azobenzene Chromophores by Wu, Yiliang, Natansohn, Almeria, Rochon, Paul

“…Circular dichroism and circular birefringence were induced in thin films of achiral polymer liquid crystals containing 7 or 15 mol % azobenzene chromophores by…”
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Synthesis and Characterization of a Series of Azobenzene-Containing Side-Chain Liquid Crystalline Polymers by Freiberg, Stephan, Lagugné-Labarthet, François, Rochon, Paul, Natansohn, Almeria

“…A series of poly{4‘-{(X-methacryloyloxyalkylene)methylamino}-4-nitroazobenzene} (pXMAN, where X is the number of methylene units and varies from 2 to 12)…”
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Spectroscopic and Optical Characterization of a Series of Azobenzene-Containing Side-Chain Liquid Crystalline Polymers by Labarthet, François Lagugné, Freiberg, Stephan, Pellerin, Christian, Pézolet, Michel, Natansohn, Almeria, Rochon, Paul

“…A series of azobenzene-containing side chain liquid crystalline polymers with various spacer lengths (p X MAN, where X, the number of methylene units, varies…”
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Photoinduced liquid crystal alignment based on a surface relief grating in an assembled cell by Li, Xiang Tong, Natansohn, Almeria, Rochon, Paul

“…Surface relief gratings have been optically inscribed on azopolymer films on the interior surface of an empty liquid crystal (LC) cell. Uniform LC alignment is…”
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Molecular Addressing? Selective Photoinduced Cooperative Motion of Polar Ester Groups in Copolymers Containing Azobenzene Groups by Natansohn, Almeria, Rochon, Paul, Meng, Xiansheng, Barrett, Christopher, Buffeteau, Thierry, Bonenfant, Sacha, Pézolet, Michel

“…Amorphous copolymers with rigid azobenzene and ester side groups form films in which birefringence can be induced using linearly polarized light. When both the…”
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Azocarbazole Polymethacrylates as Single-Component Electrooptic Materials by Barrett, Christopher, Choudhury, Biswajit, Natansohn, Almeria, Rochon, Paul

“…A series of amorphous azobenzene and carbazole-containing polymers was prepared, which incorporates both electrooptic activity and photoconductivity into a…”
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The Characterization of Photoinduced Chirality in a Liquid-Crystalline Azo Polymer on Irradiation with Circularly Polarized Light by Hore, Dennis K, Natansohn, Almeria L, Rochon, Paul L

“…In this study, an achiral liquid-crystalline azo polymer is irradiated with circularly polarized light, and the transmitted polarization data show evidence of…”
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Anomalous Cis Isomer Orientation in a Liquid Crystalline Azo Polymer on Irradiation with Linearly-Polarized Light by Hore, Dennis K, Natansohn, Almeria L, Rochon, Paul L

“…An azo-containing liquid crystalline polymer was irradiated with linearly polarized blue Ar+ light and the resulting linear birefringence and dichroism were…”
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Optical Anisotropy as a Probe of Structural Order by Stokes Polarimetry by Hore, Dennis K, Natansohn, Almeria L, Rochon, Paul L

“…Structural order often manifests itself in the anisotropic optical phenomena birefringence and dichroism. Such properties of a material cause changes in the…”
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Study of Cooperative Side Group Motions in Amorphous Polymers by Time Dependent Infrared Spectroscopy by Buffeteau, Thierry, Natansohn, Almeria, Rochon, Paul, Pézolet, Michel

“…Amorphous copolymers of 4‘-[(2-(methacryloyloxy)ethyl)ethylamino]-4-nitroazobenzene (DR1M) and 4-nitrophenyl 4-[2-(methacryloyloxy)ethyl]benzoate (BEM) have…”
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Microstructure of Copolymers Containing Disperse Red 1 and Methyl Methacrylate by Xie, Shuang, Natansohn, Almeria, Rochon, Paul

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Phase Structure of Poly(dimethylsiloxane−urea−urethane)- Segmented Copolymers as Observed by Solid-State Nuclear Magnetic Resonance Spectra by Cho, Gyunggoo, Natansohn, Almeria, Ho, Tai, Wynne, Kenneth J

“…Three segmented copolymers having as hard segments poly(urethane−urea)s based on isophorone diisocyanate (IP) and 1,4-benzenedimethanol (B) and having as soft…”
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Nuclear magnetic resonance studies of ionomers. 1. Interactions between poly(methyl methacrylate-co-4-vinylpyridine) and poly(styrene-co-styrenesulfonic acid) in dimethyl sulfoxide solution by Natansohn, Almeria, Eisenberg, Adi

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Solid-state study of charge-transfer interactions in copolymers by Simmons, Alexandra, Natansohn, Almeria

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Photoinduced Motions in Azobenzene-Based Amorphous Polymers: Possible Photonic Devices by Natansohn, A., Rochon, P.

“…Couplers, filters, and polarization separators are some of the applications of azobenzene‐based amorphous polymers such as the one shown in the Figure. The…”
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Control of Chirality of an Azobenzene Liquid Crystalline Polymer with Circularly Polarized Light by Iftime, Gabriel, Labarthet, François Lagugné, Natansohn, Almeria, Rochon, Paul

“…Irradiation with circularly polarized light of a film of an achiral azobenzene liquid crystalline polymer induces chirality. Circularly polarized light with…”
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Photoinduced Birefringence and Surface Relief Gratings in Polyurethane Elastomers with Azobenzene Chromophore in the Hard Segment by Wu, Yiliang, Natansohn, Almeria, Rochon, Paul

“…A series of polyurethane elastomers containing aromatic azobenzene chromophore in the hard segment was synthesized by a one-step method. AFM surface study…”
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Effects of charge-transfer interactions in the CP-MAS carbon-13 NMR spectra of copolymers and blends by Natansohn, Almeria, Simmons, Alexandra

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Intermolecular cross-polarization studies of the miscibility enhancement of PS/PMMA blends through ionic interactions by Zhang, Xinsheng, Natansohn, Almeria, Eisenberg, Adi

“…The CP/MAS exp 13 C NMR technique is employed to probe the bulk structures of deuterated PS/protonated PMMA blends containing ionically interacting groups…”
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