Abstract
Relaxation rates of 2H methylene polyacrylate solutions have been determined for five different types of monovalent counter-ions: tetramethylammonium (TMA) and four alkali ions, Li, Na, K and Cs. TMA influences the polymer 2H relaxation rates in a way that differs qualitatively from the effect of the alkali counterions. In the presence of TMA the transverse rates of the polymer nuclei are increased relative to their values in the presence of alkali ions. For the longitudinal rates another effect is observed, the rates are larger for Li and Na and essentially the same for K, Cs and TMA.
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