@article {17477, title = {Dynamics of Chitosan by 1H NMR Relaxation}, journal = {Biomacromolecules}, volume = {11}, year = {2010}, month = {2010-07-02 00:00:00}, pages = {2079}, abstract = {

The dynamics of chitosan (CS) in solution have been studied by 1 H NMR relaxation [longitudinal (T 1 ) and transverse
(T 2 ) relaxation times and NOE] as a function of the degrees of acetylation (DA, 1 - 70) and polymerization (DP,
10 - 1200), temperature (278 - 343 K), concentration (0.1 - 30 g/L), and ionic strength (50 - 400 mM). This analysis
points to CS as a semirigid polymer with increased flexibility at higher DA in agreement with reduced electrostatic
repulsions between protonated amino groups.

}, keywords = {Chitosan, dynamics}, author = {Novoa-Carballal, R. and Fernandez-Megia, E. and Riguera, R.} }