抄録
Vapor pressure of polyethylene glycol 300, 400, 600 and of carbowax 1500, 4000 was measured with a pendulum tensimeter, and it was found that these substances possessed a low vapor pressure, in the order of 1.5-15×10-4mm Hg, in the temperature range of 5-70°, and the vapor pressure became lower as the molecular weight became larger. The logP-1/T curves may be considered a straight line within a narrow temperature range but will deviate from linearity in a larger temperature range.
