Immobilized to polyacrylamide

30 g polyacrylamide is added in 160 mL distilled water, mixed in a 50°C water bath for dissolving. 2.0 g -CDs-sulfonic ester is added by bath to react in 50°C water bath for 24 h. The solvent is removed through evaporation and the solid product is washed by methanol and ether respectively. Then, it is vacuum dried and white solid polymer products are obtained. 

CD immobilization which uses organic synthetic polymer as carrier is a novel technology and relevant reports appeared until the 1970s. This kind of carrier 

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