期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 1, 期 11, 页码 2097-2101出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3tc00946g
关键词
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资金
- Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy
We report a simple, one step process for developing wrinkling patterns in azlactone-based polymer thin films and brushes on 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.
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