Resumen

MARTINEZ, Araceli  y  TLENKOPATCHEV, Mikhail A. Cross-metathesis of natural rubber with d -limoneno and essential oils. Rev Cub Quim [online]. 2015, vol.27, n.1, pp. 79-86. ISSN 2224-5421.

This paper reports the cross-metathesis degradation of natural rubber (NR) with mandarin, lemon and orange oils, and d-limonene, which were used as chain transfer agents (CTA's) and green solvents. The reactions were carried out in presence of the catalyst (PCy₃)₂(Cl)₂Ru=CHPh (I). The isoprene oligomers products obtained in the natural rubber degradation showed molecular weights in the order of M_n x10² and yields about 80 % to 95 %. On the other side, the composition of the products of degradation HN technique using GC/MS (EI) was determined. It was found that the main products were isoprene oligomers with units of m = 2, 3 and 4.

Palabras clave : cross-metathesis degradation; natural rubber; essential oils; alkylidene-ruthenium catalyst.

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