fig2
![Remarkable interfacial dielectric relaxation of physically cross-linked ice hydrogels](https://image.oaes.cc/8b5f6870-00c5-4ca9-835b-4faf96d2943d/4347.fig.2.jpg)
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.