Octadecylammonium montmorillonite/natural rubber/cis-1,4-polybutadiene nanocomposites

►TEM confirmed that the majority of the OMMT particles was dispersed uniformly in the NR matrix. ►OMMT decreased the Ts of NR/BR blends and implemented the synchronic vulcanization reaction. ►The good thermal stability is attributed to the good dispersion of OMMT in the rubber matrix.