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

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 μm 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.
Authors:
; ;  [1] ;  [1] ;  [2] ;  [1] ;  [3] ;  [1] ;  [3]
  1. European Laboratory for Non Linear Spectroscopy (LENS), University of Florence, via Nello Carrara 1, 50019 Sesto Fiorentino (Italy)
  2. (Poland)
  3. (Italy)
Publication Date:
OSTI Identifier:
22395751
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALIGNMENT; BOUNDARY CONDITIONS; ELASTOMERS; LIQUID CRYSTALS; MICROSTRUCTURE; ORIENTATION; PHOTONS; POLYMERIZATION; VISIBLE RADIATION