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Zelcer, A.; Donnio, B.; Bourgogne, C.; Cukiernik, F.D.; Guillon, D. "Mesomorphism of hybrid siloxane-triphenylene star-shaped oligomers" (2007) Chemistry of Materials. 19(8):1992-2006
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Abstract:

Novel hybrid triphenylene-carbosiloxane liquid crystalline monomers and star-shaped oligomers have been synthesized and their thermal behavior and liquid-crystalline properties analyzed and characterized. All compounds exhibit a columnar hexagonal phase and show, particularly the oligomers, a small tendency to crystallize. The substitution pattern on the central triphenylene moiety has very different effects on the crystal to columnar phase and columnar to isotropic liquid-phase transitions. A novel sterically induced superlattice has been found, and a model for the microscopic structure is proposed. One compound could be mechanically aligned, leading to well-oriented columnar liquid crystals. © 2007 American Chemical Society.

Registro:

Documento: Artículo
Título:Mesomorphism of hybrid siloxane-triphenylene star-shaped oligomers
Autor:Zelcer, A.; Donnio, B.; Bourgogne, C.; Cukiernik, F.D.; Guillon, D.
Filiación:INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Fisica, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
Institut de Physique et Chimie des Matériaux de Strasbourg, Groupe des Matériaux Organiques (CNRS-ULP, UMR 7504), 23 rue du Loess, 67034 Strasbourg Cedex 2, France
Instituto de Ciencias, Universidad Nacional de General Sarmiento, J. M. Gutierrez 1150, Los Polvorines, Prov. Buenos Aires, Argentina
Palabras clave:Crystalline materials; Hybrid materials; Microscopic examination; Monomers; Phase transitions; Substitution reactions; Columnar hexagonal phase; Crystalline properties; Star-shaped oligomers; Triphenylene moiety; Oligomers
Año:2007
Volumen:19
Número:8
Página de inicio:1992
Página de fin:2006
DOI: http://dx.doi.org/10.1021/cm062949b
Título revista:Chemistry of Materials
Título revista abreviado:Chem. Mater.
ISSN:08974756
CODEN:CMATE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08974756_v19_n8_p1992_Zelcer

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Citas:

---------- APA ----------
Zelcer, A., Donnio, B., Bourgogne, C., Cukiernik, F.D. & Guillon, D. (2007) . Mesomorphism of hybrid siloxane-triphenylene star-shaped oligomers. Chemistry of Materials, 19(8), 1992-2006.
http://dx.doi.org/10.1021/cm062949b
---------- CHICAGO ----------
Zelcer, A., Donnio, B., Bourgogne, C., Cukiernik, F.D., Guillon, D. "Mesomorphism of hybrid siloxane-triphenylene star-shaped oligomers" . Chemistry of Materials 19, no. 8 (2007) : 1992-2006.
http://dx.doi.org/10.1021/cm062949b
---------- MLA ----------
Zelcer, A., Donnio, B., Bourgogne, C., Cukiernik, F.D., Guillon, D. "Mesomorphism of hybrid siloxane-triphenylene star-shaped oligomers" . Chemistry of Materials, vol. 19, no. 8, 2007, pp. 1992-2006.
http://dx.doi.org/10.1021/cm062949b
---------- VANCOUVER ----------
Zelcer, A., Donnio, B., Bourgogne, C., Cukiernik, F.D., Guillon, D. Mesomorphism of hybrid siloxane-triphenylene star-shaped oligomers. Chem. Mater. 2007;19(8):1992-2006.
http://dx.doi.org/10.1021/cm062949b