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Alignment engineering in liquid crystalline elastomers: Free-form microstructures with multiple functionalities

  Articoli su Riviste JCR/ISI  (anno 2015)

Autori:  Zeng H., Wasylczyk P., Cerretti G., Martella D., Parmeggiani C., Wiersma D

Affiliazione Autori:  European Laboratory of Non Linear Spectroscopy LENS, University of Florence, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy; Faculty of Physics, Institute of Experimental Physics, University of Warsaw, ul. Hoza 69, Warszawa 00-681, Poland; Dipartimento di Chimica Ugo Schiff, University of Florence, via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy; CNR-INO, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy

Riassunto:  We report a method to fabricate polymer microstructures with local control over the molecular orientation. Alignment control is achieved on molecular level in a structure of arbitrary form that can be from 1 to 100 mu m in size, by fixing the local boundary conditions with micro-grating patterns. The method makes use of two-photon polymerization (Direct Laser Writing) and is demonstrated specifically in liquid-crystalline elastomers. This concept allows for the realization of free-form polymeric structures with multiple functionalities which are not possible to realize with existing techniques and which can be locally controlled by light in the micrometer scale. (C) 2015 AIP Publishing LLC.

Rivista/Giornale:  APPLIED PHYSICS LETTERS
Volume n.:  106 (11)      Pagine da: 111902  a: 111902
Ulteriori informazioni:  The research leading to these results has received funding from the European Research Council under the European Union
DOI: 10.1063/1.4915268

*Impact Factor della Rivista: (2015) 3.142   *Citazioni: 28
data tratti da "WEB OF SCIENCE" (marchio registrato di Thomson Reuters) ed aggiornati a:  12/05/2019

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