Degradation of long‐chain molecules by ultrasonic waves. Part VI. Effect of pressure

Ultrasonic degradation of polystyrene in benzene solutions has been studied as a function of pressure exerted on the solutions. Appreciable differences in the rate and extent of degradation have been found if the pressure was exerted via a mercury column, the solutions being saturated with gas at one atmosphere or if the pressure of nitrogen over the solutions was increased, the solution being saturated with nitrogen at each respective pressure.