title: It is the outside that counts: chemical and physical control of dynamic surfaces.
abstract: Materials capable of dynamically controlling surface chemistry and topography are highly desirable. We have designed a system that is uniquely able to remotely control the presented functionality and geometry at a given time by using a functionalizable shape memory material. This was accomplished by incorporating controlled amounts of an azide-containing monomer into a shape memory polymeric material. These materials are capable of physically changing surface geometry over a broad range of length scales from >1 mm to 100 nm. Using copper-assisted click chemistry, they can be functionalized with a variety of molecules to yield different surfaces. Combining these features gave materials that can change both the presented geometry and functionality at tunable transition temperatures.
authors: Department of Chemistry, University of North Carolina at Chapel Hill, 131 South Road, Chapel Hill, North Carolina 27510-3290, USA.
authors: Sarah M
authors: SM
authors: Brosnan
authors: Andrew H
authors: AH
authors: Brown
authors: Valerie Sheares
authors: VS
authors: Ashby