Cyclodextrins(CDs) form stable supramolecular structures (polypseudorotaxanes) with different polymers, through a threading process, by hosting the hydrophobic chain in their free cavities. The kinetics of formation of such adducts in different solvents and with different reactants (α-, β-, or γ-CD, and PEG, PPG or pluronics) at different temperatures was studied. The physico-chemical treatment provides the number of CD molecules threaded per single polymer chain, and the corresponding thermodynamic parameters. Addition of salts to the reaction medium reveal a Hofmeister series effect. Induced water structure changes were observed when D2O, urea and sugars were added to the solvent.
Polypseudorotaxanes from beta-Cyclodextrin. The role of bulk water structure in self assembly / LO NOSTRO P.; NINHAM B. W.; P. BAGLIONI. - STAMPA. - (2003), pp. 160-174.
Polypseudorotaxanes from beta-Cyclodextrin. The role of bulk water structure in self assembly
LO NOSTRO, PIERANDREA;BAGLIONI, PIERO
2003
Abstract
Cyclodextrins(CDs) form stable supramolecular structures (polypseudorotaxanes) with different polymers, through a threading process, by hosting the hydrophobic chain in their free cavities. The kinetics of formation of such adducts in different solvents and with different reactants (α-, β-, or γ-CD, and PEG, PPG or pluronics) at different temperatures was studied. The physico-chemical treatment provides the number of CD molecules threaded per single polymer chain, and the corresponding thermodynamic parameters. Addition of salts to the reaction medium reveal a Hofmeister series effect. Induced water structure changes were observed when D2O, urea and sugars were added to the solvent.File | Dimensione | Formato | |
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