T. Khanra, B. Adhikari, S. Maiti
Mar 1, 1993
Citations
0
Influential Citations
10
Citations
Journal
Rubber Chemistry and Technology
Abstract
Abstract Benzazole thiol (e.g. 2-Mercaptobenzothiazole and 2-Mercaptobenzimidazole) and sulfenamide (e.g. 2-Morpholino thiobenzothiazole) are used as rubber chemicals. The nature and the extent of their performances in rubber depend on the nature of the key heteroatom present in the azole ring. It has been found that the presence of X (S or N) as the key heteroatom in the grouping —X—‖—SH of the azole ring is responsible for either accelerator or antioxidant action. Although some scattered informations on accelerator and antioxidant functions are available for some of the benzazole derivatives, their comparative ratings in these functions are not found in the literature. In the present communication, synthesis and characterization of some benzazole sulfenamides are reported. Together with this, a comparative evaluation of accelerator-cum-anti-oxidant properties of both the benzazole thiols and sulfenamides is described. Such dual function rubber chemicals are unusual and novel and should fetch a premium p...