Snapshots of PVA hydrogels of (a) water content cw = 27.5 wt % and (b) 50.0 wt % at 200 K. Carbon, oxygen, and hydrogen atoms of PVA are shown by gray, red, and white balls, respectively. Sticks express water molecules, which are classified into three regions: hydrophilic region (yellow), hydrophobic region (green), and bulk region (blue).
| 含水率 27.5 wt% | 含水率 50.0 wt% |
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