Static light scattering measurements were performed on dilute solutions of monodisperse poly(ethylene oxide) (PEG) in methanol at 25 degrees C. PEOs of five different molecular weights ranging from nominal M(w) = 8.6 X 10(4) to 9.13 X 10(5) were used. Linear Zimm plots were obtained for all the PEO samples : no downturn was observed at small angles, indicating that no large aggregates of PEG molecules exist in the solution. From the plots, values of the weight-average molecular weight, M(w), the radius of gyration, R(G), and the second virial coefficient, A(2), were successfully determined for respective PEOs. Observed relationship between R(G) and M(w) indicates that methanol is certainly a good solvent for the polymer.