課題組關于利用雙重超分子作用調控兩親性環糊精二聚體在不同溶劑中自組裝形態的研究工作被J. Phys. Chem. B接受
Probing
into the Supramolecular Driving Force of an Amphiphilic β-Cyclodextrin Dimer in Various
Solvents: Host-Guest Recognitionor Hydrophilic-Hydrophobic Interaction?
Yang
Bai, Xiao-dong Fan*, Hao Yao, Zhen Yang, Ting-ting Liu, Hai-tao Zhang, Wan-bin
Zhang, and Wei Tian*
Tuning
of the morphology and size of supramolecular self-assemblies is of theoretical
and practical significance. To date, supramolecular driving forces in different
solvents remain unclear. In this study, we first synthesized an amphiphilic
β-cyclodextrin (β-CD) dimer that consists of one hydrophobic ibuprofen (Ibu)
and two hydrophilic β-CD moieties (i.e., Ibu-CD2). Ibu-CD2 possesses double
supramolecular driving forces, namely, the host-guest recognition and
hydrophilic-hydrophobic interaction. The host-guest interaction of Ibu-CD2
induced the formation of branched supramolecular polymers (SPs) in pure water,
whereas the hydrophilic-hydrophobic interaction generated spherical or
irregular micelles in water/organic mixtures. The SP size increased with the
increase in Ibu-CD2 concentration in pure water. By contrast, the size of
micelles decreased with the increase in volume ratio of water in mixtures.
全文鏈接：http://pubs.acs.org/doi/full/10.1021/acs.jpcb.5b05317