Influence of Hydrophobicity of Backbone Polymer in Thermo-responsive Hydrogel with Immobilized Amine on Cycle Capacity for Absorption and Recovery of CO.

The chemisorption process with amines is the major separation and recovery method of CO because of its high processing capacity and simplicity. However, large energy consumption for the desorption of CO is also associated with the process. To develop a separation and recovery process that is capable of desorbing CO at low temperatures and with minimal energy consumption, polymer hydrogels with a lower critical solution temperature (LCST) polymer network and amine groups immobilized in the polymer network of the hydrogels were exploited.