Counterion NMR in Some Polyelectrolyte Systems
NMR quadrupole relaxation rates of 23Na+ were used to study counterionpolyion interactions for both synthetic and biological macromolecules. The non-exponential relaxation and the non-equality of T1 and T2 permitted an analysis in terms of correlation times, quadrupole coupling constants and amount of counterion binding.
KeywordsCorrelation Time Conformational Transition Biological Macromolecule Dermatan Sulphate Quadrupole Coupling Constant
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