EXTRACTION-RESISTANT ANTIOXIDANTS WITH ACCELERATING ACTIVITY FOR VULCANIZATION STUDIES ON THE POLYFUNCTIONAL ADDITIVES VI

Abstract

6-R-1, 3, 5-triazine-2, 4-bis(benzothiazolyl disulfide) (I) and 4, 6-bis-R-1, 3, 5-triazine-2-benzothiazolyl disulfide (II) [R: -NHC₆H₄NHC₆H₄, -N(i-C₃H₇)C₆H₄NHC₆H₅.] have been found to react as an extraction-resistant antioxidant with an accelerating activity for vulcanization of IR, SBR, and NBR to give an improved vulcanizates with an ageing resistant property even after solvent extraction. The accelerating activity was much more improved by using coagent such as TMTM, TMTD. A bound per cent was 20-36 and 75-99% for IR and NBR, respectively.