[NMR spin-echo study of the effect of hydration on the mobility and conformation of linear polyethyleneimine].
It has been shown that mobility of protons in different groups of linear polyethylenimine (LPEI) is sensitive to the formation of H-bonds between amino groups of a polymer. Upon hydration of LPEI most of direct bonds between amino groups are substituted by the bonds via water molecules. This results in a conformational change of the polymer. Similar process may also occur in biopolymers.
Molecular Conformation↗