1. Rubber is a naturally occuring polymer. It is obtained from the latex that excludes from cuts in the bark of rubber tree.
2. The monomer unit of natural rubber is cis – iso prene (2 – methyl buta – 1,3 – diene). Thousands of isoprene units are linearly linked together in natural rubber. Natural rubber is not so strong (or) elastic. The properties of natural rubber can be modified by the process called vulcanization.
