T. Biswas et al., SOME INVESTIGATIONS ON STRUCTURE-PROPERTY RELATIONSHIP IN XNBR VULCANIZATES IN THE PRESENCE OF BIS(DIISOPROPYL THIOPHOSPHORYL) DISULFIDE, Journal of applied polymer science, 64(13), 1997, pp. 2623-2630
The study reveals that a new type of sulfidic crosslinks arising from
the reaction between carboxylated nitrile:rubber (XNBR) and bis(diisop
ropyl)thiophosphoryl disulfide can improve the mechanical properties o
f the XNBR vulcanizates. The study further reveals the fact that these
sulfidic crosslinks in combination with metallocarboxylate cross-link
s produce a significant effect in XNBR vulcanization. Some investigati
ons have been carried out using a methyl iodide probe to elucidate the
formation of chemical linkages during cure. Also, attempts have been
made to establish the relationship between the structure and physical
properties of the XNBR vulcanizates in this respect. (C) 1997 John Wil
ey & Sons, Inc.