Programmable, Pattern-Memorizing Polymer Surface

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Abstract

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A Pattern memory effect is demonstrated in an acrylated-based shape memory polymer and a Nafion film. Nanoimprint lithography is applied to both fabricate permanent patterns and program temporary patterns. Upon thermal triggering, these temporary patterns recover to their permanent patterns. This allows programming and harvesting nanoscale pattern changes beyond stress- or strain- harvesting in current shape memory polymer applications.

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