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The first thiol-yne click chemistry approach for the preparation of liquid crystalline elastomers

  Articoli su Riviste JCR/ISI  (anno 2015)

Autori:  Martella D., Parmeggiani C., Wiersma D. S., Piñol M., Oriol L

Affiliazione Autori:  European Laboratory for Non-Linear Spectroscopy (LENS), University of Florence, Via Nello Carrara 1, Sesto Fiorentino, 50019, Italy; Dipartimento di Chimica ugo Schiff, University of Florence, via della Lastruccia 3-13, Sesto Fiorentino, 50019, Italy; Instituto de Ciencia de Materiales de Aragón (ICMA), Departamento de Química Orgánica, Facultad de Ciencias, CSIC-Universidad de Zaragoza, C./Pedro Cerbuna 12, 50009 Zaragoza, Spain; Istituto Nazionale di Ottica (CNR-INO), U.O.S. Sesto Fiorentino Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy

Riassunto:  A thiol-yne click chemistry reaction is presented, for the first time, to prepare liquid crystalline elastomers. The synthetic strategy is based on two liquid crystalline monomers, one bearing an alkyne group and the second bearing two thiol groups, to create a liquid crystalline network with a mixed side-chain/main-chain structure. The resulting material, having this macromolecular structure, is able to undergo bigger contractions than the common LCEs prepared using photopolymerization and having a side-chain structure. This preparation method results in a good strategy also for miniaturization of LCE devices, a hot topic in microrobotics and fluidic-photonics.

Rivista/Giornale:  JOURNAL OF MATERIALS CHEMISTRY C
Volume n.:  3 (34)      Pagine da: 9003  a: 9010
Ulteriori informazioni:  The research leading to these results has received funding from European Research Council under the European Union\'s Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement no. [291349] on photonic microrobotics and the MINECO project MAT 2011-27978-C02-01. FEDER and Government of Aragon funding is also acknowledged. We deeply appreciate the help of Dr I. Ochoa and coworkers from the Institute of Engineering Research (I3A) of the University of Zaragoza on the study of mechanical properties of the films.
DOI: 10.1039/c5tc01290b

*Impact Factor della Rivista: (2015) 5.066   *Citazioni: 20
data tratti da "WEB OF SCIENCE" (marchio registrato di Thomson Reuters) ed aggiornati a:  21/07/2019

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