3.3 Oxygen Permeability
It was found that the Dk values of the 40% Na-AMPS hydrogel sheets were about 270 × 10-11- 320 × 10-11
cc.mm./cm2.s.mmHg, significantly higher than other hydrogel polymers such as polyHEMA for which the Dk is
about 145 x 10-11 cc.mm./cm2.s.mmHg [6]-[7].