| Abstract: | A novel poly(N‐isopropylacrylamide‐co‐acryloylamidobenzo‐12‐crown‐4) (PNB) microgel with rapid γ‐cyclodextrin (CD)‐responsive characteristics and adsorption property is developed. The microgel is composed of benzo‐12‐crown‐4 (B12C4) units as molecule‐recognition receptors and poly(N‐isopropylacrylamide) networks as phase‐transition actuators as well as adsorbent backbone chains. The PNB microgels significantly increase their volumes induced by γ‐CD, and adsorb γ‐CD molecules within PNB networks because of formation of γ‐CD/B12C4 inclusion complexes. Detection of γ‐CD‐concentration and the molecule‐specific adsorption processes of the microgels are investigated systematically. The PNB microgels provide a new tool for rapid concentration measurement and effective separation of γ‐CD. |
