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Issue 11, 2013
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Spontaneous wrinkling in azlactone-based functional polymer thin films in 2D and 3D geometries for guided nanopatterning

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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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Publication details

The article was received on 28 Dec 2012, accepted on 04 Feb 2013 and first published on 04 Feb 2013


Article type: Communication
DOI: 10.1039/C3TC00946G
Citation: 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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