課題組關(guān)于利用雙重超分子作用調(diào)控兩親性環(huán)糊精二聚體在不同溶劑中自組裝形態(tài)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. Bycontrast, 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