Composition for forming absorption-desorption sheet, absorption-desorption sheet including the composition, and method of preparing the absorption-desorption sheet

A composition for forming an absorption-desorption sheet, the composition comprising:

• a polymerizable first monomer or oligomer comprising an ionic hydrophilic group;
• a polymerizable second monomer or oligomer comprising a non-ionic hydrophilic group that includes an oxide-based monomer or oligomer;
• a deliquescent salt;
• and
• a cross-linking agent, wherein the cross-linking agent is N,N′-methylenebisacrylamide, ethylene glycol dimethacrylate, tetra-aryloxy ethane, trimethylolpropane triacrylate, or triarylamine;
• wherein
• an amount of the second monomer or oligomer is in a range of about 30 parts to about 500 parts by weight based on 100 parts by weight of the first monomer or oligomer, and
• an amount of the deliquescent salt is in a range of 40 parts to 80 parts by weight based on 100 parts by weight of the total amounts of the first monomer or oligomer and the second monomer or oligomer.