The content of the PM units in PC was determined using gas chromatography. Specifically, acetone and tert-butyl alcohol were quantified, formed by thermal decomposition of the peroxide groups at 180-200 °C in toluene in the presence of 2.6-di-tert-butyl-4-methyl phenol as a free-radical scavenger. The analysis was performed using gas chromatography "Selmichrom" (Selmi Co., Ukraine) supplied with 2 m metal columns filled by Inerton-super adsorbent, modified by 5% of Carbowax 40M, and with a cathetometer as a detector. Helium was used as a carrier gas at a flow rate of 1.5 L/min.