Directed water shedding on high-aspect-ratio shape memory polymer micropillar arrays

Chi-Mon Chen; Shu Yang

doi:10.1002/adma.201304030

Directed water shedding on high-aspect-ratio shape memory polymer micropillar arrays

Adv Mater. 2014 Feb 26;26(8):1283-8. doi: 10.1002/adma.201304030. Epub 2013 Nov 29.

Authors

Chi-Mon Chen¹, Shu Yang

Affiliation

¹ Department of Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, PA, 19104, USA.

PMID: 24293288
DOI: 10.1002/adma.201304030

Abstract

A reconfigurable, droplet-directing surface is developed based on high-aspect-ratio shape-memory polymer (SMP) pillars. The water droplet on the original or recovered SMP pillars can slide off the surface at a finite angle of inclination while being fully pinned on the deformed pillar array. This wettability contrast allows directed water shredding from the straight pillars to the deformed ones.

Keywords: deformation; high-aspect-ratio pillars; shape memory polymers; water sliding; wettability.

Publication types

Research Support, Non-U.S. Gov't