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Cover Image, Volume 51, Issue 7 Journal of Polymer Science Part A: Polymer Chemistry 51

Version of Record online: 27 FEB 2013 | DOI: 10.1002/pola.26633

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On page 1533, Adam B. Braunschweig and colleagues investigate the suitability of different polymer compositions of tip arrays for polymer pen lithography (PPL), and the mandala of tip arrays represents the nearly limitless number of polymer combinations that could be suitable for PPL printing. In the center is an optical microscopy image of a pen array, with the chemical structures of different polymers (polydimethylsiloxane, poly(methyl methacrylate), poly([methyl methacrylate]-co-[butyl methacrylate]), and poly(3-mercaptopropylmethylsiloxane)) that were explored to generate the pen arrays. In the corners of the mandala are scanning electron micrographs of pyramidal tips within these arrays. The mandala is superimposed on images and graphs that represent the time- and force-dependent printing that are the hallmarks of this powerful nanolithography technique.

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