Symmetric bent-shaped liquid crystal dimers showing transitions between optically uniaxial and biaxial smectic phases

Autor: Bertrand Donnio, Rosana S. Montani, Daniel Guillon, Claudia M. Hegguilustoy, Maria B. Darda, Raúl O. Garay, Benoît Heinrich

Publikováno v: Liquid Crystals. 42:1013-1023

We report the synthesis of a new homologous series of symmetric bent-shaped liquid crystal dimers bearing oxybiphenylcarboxylate mesogens linked by a pentamethylene spacer. The dimers were characterised by optical, thermal, X-ray diffraction and comp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9badb62cc6961014d4a13bbaac815eb8
https://doi.org/10.1080/02678292.2015.1013515

Mesomorphic Hexabenzocoronenes Bearing Perfluorinated Chains

Autor: Titus A. Jenny, Bassam Alameddine, Bertrand Donnio, Corinne Savary, Daniel Guillon, Robert Deschenaux, Oliver Scheidegger, David Scanu, Walter Amrein, Olivier F. Aebischer

Synthesis and characterization of new hexabenzocoronene (HBC) derivatives bearing perfluoroalkylated chains are described. These disc-shaped polycondensed aromatic hydrocarbons are known to self-assemble by π-stacking into columnar architectures. Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0daea5c0b10985de1b51c17415d7a5f
http://doc.rero.ch/record/288828/files/Alameddine_Bassam_-_Mesomorphic_Hexabenzocoronenes_Bearing_Perfluorinated_20170530.pdf

Intertwined Lamello-Columnar Coassemblies in Liquid-Crystalline Side-Chain Π-Conjugated Polymers: Toward a New Class of Nanostructured Supramolecular Organic Semiconductors

Autor: Martin Brinkmann, Dimitri A. Ivanov, Navaphun Kayunkid, Fabrice Mathevet, Farid Kameche, Benoiît Heinrich, Ibtissam Tahar-Djebbar, David Kreher, Emmanuelle Lacaze, André Jean Attias, Daniel Guillon, Bertrand Donnio, Danli Zeng, Yiming Xiao

Publikováno v: Macromolecules
Macromolecules, American Chemical Society, 2014, 47 (5), pp.1715-1731. ⟨10.1021/ma4020356⟩
Macromolecules, 2014, 47 (5), pp.1715-1731. ⟨10.1021/ma4020356⟩
Macromolecules, American Chemical Society, 2014, 47 (5), pp.1715-1731
HAL

A set of liquid-crystalline polymeric systems, associating at once the regioregular polythiophene backbone and pending mesogenic triphenylenes, is reported. Two series, namely regular homopolymers and alternating copolymers, were prepared by adapting

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15fe67efc4ee86f3775df7b4e81bd691
https://doi.org/10.1021/ma4020356

Photo- and thermal-processing of azobenzene-containing star-shaped liquid crystals

Autor: Daniel Guillon, Jaroslaw Tomczyk, Bertrand Donnio, Joachim Stumpe, Zsuzsanna Tamara Nagy, Anna Sobolewska

Publikováno v: J. Mater. Chem. C. 1:924-932

A new class of star-shaped, liquid crystalline, low-molecular weight compounds functionalized with photochromic azobenzene and mesogenic groups was investigated in terms of light-induced anisotropy. The behaviour of the materials under the action of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::296c52abc5098751729e7ba79ec6890b
https://doi.org/10.1039/c2tc00627h

Self-assembly and liquid-crystalline supramolecular organizations of semifluorinated block co-dendritic supermolecules

Autor: Daniel Guillon, Izabela Bury, Benoît Heinrich, Bertrand Donnio, Cyril Bourgogne, Georg H. Mehl

Publikováno v: New J. Chem.. 36:452-468

The synthesis and self-organizing behaviour into liquid-crystalline mesophases of two libraries of segmented block co-dendrimers are described. The overall structure of the dendritic supermolecules consists of two chemically incompatible molecular mo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d250eb61479b9dbb2e5ddde7f3b9ad2b
https://doi.org/10.1039/c1nj20530g