Anisotropic volume change of poly(N-isopropylacrylamide)-based hydrogels with an aligned dual-network microstructure†
Abstract
A macroscopically anisotropic PEG–PNIPA hydrogel with a novel aligned dual-network microstructure has been fabricated, which displays a unique anisotropic two-dimensional shrinkage in response to a temperature increase. It consists of an aligned porous PEG scaffold as the primary network and PNIPA