[J. Phys. Chem. B.] Probing into the Supramolecular Driving Force of an Amphiphilic β?Cyclodextrin Dimer in Various Solvents: Host?Guest Recognition or Hydrophilic?Hydrophobic Interaction?
writer：Yang Bai, Xiao-dong Fan,*, Hao Yao, Zhen Yang,Ting-ting Liu, Hai-tao Zhang, Wan-bin Zhang ect
keywords：the Supramolecular Driving Force,an Amphiphilic β?Cyclodextrin Dimer,Various Solvents
source：期刊
specific source：J. Phys. Chem. B, 2015, 119, 11893-11899
Issue time：2015年
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/abs/10.1021/acs.jpcb.5b05317