Ilia Sadilov, Gissela Constante, Martin Dulle, Dennis Schönfeld, Thorsten Pretsch and Leonid Ionov*,
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引用次数: 0
Abstract
We report the fabrication of topographically structured surfaces with reversibly switchable topography by using melt electrowriting (MEW). In particular, MEW was used to produce continuous high aspect ratio lamellae of semicrystalline polyester urethane with a poly(1,10-decylene adipate) soft segment. The switching of topography is achieved by the expansion and contraction of the polymer caused by the melting and crystallization of the soft segment that results in the buckling of lamellae. In the molten stage, lamellae can be buckled in a certain direction by capillary forces caused by water droplets between two lamellae. In addition, the interlamellar distance between neighbors’ lamellae can be managed by water droplets. Finally, we have demonstrated the possibility of creating electrically conductive surfaces with switchable conductivity achieved by the reversible buckling of the lamellae.
期刊介绍：
ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.
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