Table 1.

Water contents of hydrogels and the residual BMIMCl amounts in porous celluloses.

Entry	Cellulose Concentration in BMIMCl Solution (wt.%)	Water Content of Primary Hydrogel (wt.%) (a)	Residual BMIMCl in Porous Cellulose (wt.%) (b)	Water Content of Reswollen Hydrogel (wt.%) (a)
1	5	94.8	0.52	90.8
2	10	90.7	0.60	85.2
3	12	89.3	0.68	82.2
4	15	85.4	0.38	69.6

^(a) Estimated by the weight differences between the hydrogels and regenerated celluloses. ^(b) Estimated by the weight differences between the regenerated celluloses and starting celluloses.