Issue 50, 2014
From the journal:

Chemical Communications

pH dependent isotropic to nematic phase transitions in graphene oxide dispersions reveal droplet liquid crystalline phases†

Rachel Tkacz,a   Rudolf Oldenbourg,bc   Shalin B. Mehta,b   Morteza Miansari,a   Amitabh Vermab  and  Mainak Majumder*a  

* Corresponding authors

a Nanoscale Science and Engineering Laboratory (NSEL), Mechanical and Aerospace Engineering Department, Monash University, Clayton, Australia
E-mail: mainak.majumder@monash.edu
Tel: +61399056255

b Marine Biological Laboratory, Woods Hole, MA 02543, USA

c Physics Department, Brown University, Providence, RI 02912, USA

Abstract

Size fractionation, amplified by the surface charge density of graphene oxide (GO) sheets, broadens the pH dependent isotropic (I) to nematic (N) phase transition in aqueous dispersions of graphene oxide (GO). In this biphasic region, a highly organized droplet nematic phase of uniform size (20 ± 2.8 μm diameter) with an isotropic interior is observed.

Graphical abstract: pH dependent isotropic to nematic phase transitions in graphene oxide dispersions reveal droplet liquid crystalline phases

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Article information

DOI
https://doi.org/10.1039/C4CC00970C
Article type
Communication
Submitted
06 Feb 2014
Accepted
06 May 2014
First published
06 May 2014

Chem. Commun., 2014,50, 6668-6671

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pH dependent isotropic to nematic phase transitions in graphene oxide dispersions reveal droplet liquid crystalline phases

R. Tkacz, R. Oldenbourg, S. B. Mehta, M. Miansari, A. Verma and M. Majumder, Chem. Commun., 2014, 50, 6668 DOI: 10.1039/C4CC00970C

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