Vapor liquid equilibrium data of nine binary solvent + polymer systems were measured by a vacuum electromicrobalance cell. Solvents used were hexane, pentane, water, methanol, and ethanol. Polymers tested were poly(dimethylsiloxane), M-n, 26 000; poly(propylene oxide), M-n, 2000; poly(vinyl alcohol), M-n, 88 000; poly(acrylic acid), M-n, 1 250 000; and polycarbonate, M-n, 24 000. Measured equilibrium data were tabulated and discussed.