Patent ID: 8569062

Claim:
A cryogel comprising a polyol and a co-polymer of Formula I: wherein, m is from 150000 to 220000; n is from 4000 to 6000; p is 0 or from 3500 to 5500; x is from 1 to 5; L is a bond or —CONH— wherein the nitrogen is attached to the boron-substituted phenyl group; R 1 , R 2 , R 3 , and R 4 are independently H or C 1 -C 6 alkyl; each R 5 independently is H or C 1 -C 3 alkyl; and either X 1 is H and X 2 is —B(OH) 2 , or X is —B(OH) 2 and X 2 is H; wherein the polyol is polyvinyl alcohol or galactomannan.