Issue 11, 2013
From the journal:

Journal of Materials Chemistry C

Spontaneous wrinkling in azlactone-based functional polymer thin films in 2D and 3D geometries for guided nanopatterning

Muruganathan Ramanathan,*a   Bradley S. Lokitz,a   Jamie M. Messman,a   Christopher M. Staffordb  and  S. Michael Kilbey IIac  

* Corresponding authors

a Center for Nanophase Materials Sciences (CNMS), Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
E-mail: nmr@ornl.gov, rm.muruganathan@gmail.com
Fax: +1-865-574-1753
Tel: +1-865-574-4626

b Materials Science and Engineering Division, National Institute of Standards and Technology, Gaithersburg, MD, USA

c Department of Chemistry, University of Tennessee, Knoxville, TN 37996, USA

Abstract

We report a simple, one step process for developing wrinkling patterns in azlactone-based polymer thin films and brushes in 2D and 3D surfaces. The polymer used in this work wrinkles spontaneously upon deposition and solidification on a substrate without applying any external strain to the substrate, with the mode of deposition defining the direction of the wrinkles. Wrinkle formation is shown to occur on a variety of substrates over large areas. We also find that a very thin brush-like layer of an azlactone-containing block copolymer also exhibits wrinkled topology. Given the spontaneity and versatility of wrinkle formation, we further demonstrate two proofs-of-concept, (i) that these periodic wrinkled structures are not limited to planar surfaces, but are also developed in complex geometries including tubes, cones and other 3D structures; and (ii) that this one step wrinkling process can be used to guide the deposition of metal nanoparticles and quantum dots, creating a periodic, nanopatterned film.

Graphical abstract: Spontaneous wrinkling in azlactone-based functional polymer thin films in 2D and 3D geometries for guided nanopatterning

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Article information

DOI
https://doi.org/10.1039/C3TC00946G
Article type
Communication
Submitted
28 Dec 2012
Accepted
04 Feb 2013
First published
04 Feb 2013

J. Mater. Chem. C, 2013,1, 2097-2101

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Spontaneous wrinkling in azlactone-based functional polymer thin films in 2D and 3D geometries for guided nanopatterning

M. Ramanathan, B. S. Lokitz, J. M. Messman, C. M. Stafford and S. M. Kilbey II, J. Mater. Chem. C, 2013, 1, 2097 DOI: 10.1039/C3TC00946G

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