fig2
Figure 2. Schematic of the molecular structure and the basic structural units of the PAN-based hydrogel, where PAMPS, PAN and PAAm and PEGDA575 represent polyacrylamide-2-methyl-1-propanesulfonic acid, polyacrylonitrile, polyacrylamide and polyethylene glycol diacrylate, respectively. PAMPS: poly(2-acrylamide-2-methylpropanesulfonic acid); PAN: polyacrylonitrile; PAAm: polyacrylamide.
