- Li, Jun and Li, Xu and Toh, Kee Chua and Ni, Xiping and Zhou, Zhihan and Leong, Kam W., Inclusion complexation and formation of polypseudorotaxanes between poly[(ethylene oxide)-ran-(propylene oxide)] and cyclodextrins,
Macromolecules, vol. 34 no. 26
pp. 8829 - 8831 [ma011129b] .
(last updated on 2007/04/13)
P(EO-r-PO) copolymers with PO units of 20 mol% were studied and shown to form inclusion complexes with α-CD and γ-CD to give polypseudorotaxanes in high yields. It was found that both polypseudorotaxanes are crystalline and assume a channel-type structure. The results contradict the conventional wisdom that α-CD would not be large enough to thread over a PO unit.
Complexation;Inclusions;Molecular weight;Temperature;Solubility;Composition;Solutions;Filtration;Centrifugation;Water;X ray diffraction analysis;