Whilst most rubber is now synthesised from petroleum, around one-quarter of the world's rubber comes from a natural source ¬ a tropical tree known as Hevea brasiliensis, which is native to the tropical Americas. H. brasiliensis grows best at temperat

Natural rubber (NR) is still of great technical importance for the rubber industry. Despite many trials to replace it with synthetic polymers, 40% of all rubber polymers used is the old commodity material. The main reason is of course the combination

Rubber is a natural polymer of Isoprene (2-Methyl -1, 3 – Butadiene). It is a linear, 1, 4 – addition polymer of Isoprene. Natural rubber has elastic properties and it undergoes long range reversible extension even if relatively small force is appli