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Liquid-Crystalline Dendrimers Designed by Click Chemistry

Auteur(s)
Guerra, Sebastiano 
Institut de chimie 
Editeur(s)
Nguyen, Thi Le Anh
Furrer, Julien
Nierengarten, Jean-François
Barberá, Joaquín
Deschenaux, Robert 
Institut de chimie 
In
Macromolecules, American Chemical Society, 2016/49/9/3222-3231
Résumé
Liquid-crystalline dendrimers have been prepared from second-generation Percec- type poly(benzyl ether) dendrons or second-generation poly(aryl ester) dendrons carrying cyanobiphenyl mesogens. The Janus dendrimer, which combines the two types of dendromesogens, has also been synthesized. Those compounds have been prepared under copper-catalyzed azide–alkyne cycloaddition conditions. The mesomorphic properties have been studied by thermal analysis (POM, DSC) and small-angle X-ray scattering. Smectic A, nematic, and columnar phases have been observed depending on the dendritic building blocks. The click reaction has proven to be a powerful and elegant synthetic tool for the design of complex dendritic liquid- crystalline architectures.
URI
https://libra.unine.ch/handle/123456789/4677
DOI
10.1021/acs.macromol.6b00432
Autre version
http://dx.doi.org/10.1021/acs.macromol.6b00432
Type de publication
Resource Types::text::journal::journal article
Dossier(s) à télécharger
 main article: Guerra_S.-Liquid-crystalline_dendrimers-20170518104054-BF.pdf (5.52 MB)
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