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Urethane-crosslinked cyclodextrin polymer adsorbents which are prepared by crosslinking heptakis(2,6-di-O-methyl)-bcyclodextrin with aromatic diisocyanates show high adsorption capabilities towards polychlorobiphenyls in oil through the cooperative binding by cyclodextrin cavities and linkers.
Shintaro Kawano, Toshiyuki Kida, Kazuhiro Miyawaki, Yasunori Fukuda, Eiichi Kato, Takeshi Nakano and Mitsuru Akashi, Adsorption capability of urethane-crosslinked heptakis(2,6-di-O-methyl)-β-cyclodextrin polymers toward polychlorobiphenyls in nonpolar organic media on page 443.