As a bifunctional monomer polyethylene glycol dimethacrylate is the principle constituent of anaerobic adhesives．In the presence of dimethyl t01uidine(DMT)

sac．charin，hydroquinone，cuprous．ion or oxalic acid the oxidation of triethylene glycol dimethacrylate(TEGD)at 70±2℃ and room temperature were studied respectively．It is shown that DMT or cuprous．ion will accelerate．while hydroquinone or oxalic acid will suppress the oxidation of TEGD． Saccharin will also accelerate the oxidation of TEGD in the presence of DMT．Oxygen obsorption of anaerobic adhesives were alSo studied．It is found that anaerobic adhesive is a system which will absorb oxygen gradually and continously．The effect of various constituents in the anaerobic adhesives on the oxygen absorption of TEGD as well as on the stability of the system seems to be parallel with that on the oxidation of TEGD．SO DMT or cuprous．ion will accelerate oxygen absorption and reduce the stability of TEGD．while oxalic acid will suppress oxygen absorption and increase the stability of TEGD；the corresponding eftects of CHPO and saccharin are rather weak but distinct acceleration is observed with saceharin in the presence of DMT．