Abstract
AbstractRelationships between the ratios of the mean‐square radii of gyration gs and the second virial coefficients gA2 of ring‐shaped and linear polymers with the degree of polymerization P of the polymer and its Peterlin exponent ε in dilute solution were derived theoretically and numerical values calculated. The second virial coefficients of ring‐shaped and of linear polystyrene at 25°C in toluene were determined using light scattering. By verifying the theoretical calculation based on the experimental determination of this polymer‐solvent system with light scattering and other methods reported in the literature, the agreement between theoretical calculation and experimental results is shown. The correlation equations for linear (l) and ring‐shaped (r) polystyrene in toluene at 25°C A2, 1 = 8,06 · 10−3 · M0,224 and A2,r = 6,68 · 10−3 · M0,218 were obtained using light scattering.
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