THE INFLUENCE OF DEEP TRAPS FOR GAS MOLECULES ON OXYGEN-TRANSPORT IN THE GLASS OF 2-METHYLPENTANOL-2

The kinetics of the two processes (radical oxidation and phenanthrene phosphorescence quenching by oxygen) caused by diffusion of O-2 molecu les, have been studied in the glassy matrix of 2-methylpentanol-2. It has been established that: (i) the annealing near T-g and the creation of a high N-2 concentration in the matrix accelerate both oxidation a nd the process of phosphorescence quenching; (ii) the influence of ann ealing on both oxidation and phosphorescence quenching is smaller than that of nitrogen dissolving in the matrix; (iii) the temperature rise leads to the decrease of the influence of N, and annealing on oxidati on and phosphorescence quenching. A similar character of the abovement ioned influence on both the kinetics of radical oxidation and phosphor escence quenching confirms our recent conclusion on the existence of d eep traps for gas molecules in low-molecular glasses.