Elastic properties in elastomers :
Elastomers possess elastic properties because the intermolecular forces are the weakest. As a result, they can be readily stretched by applying small stress and regain their original shape when the stress is removed. The elasticity can be further increased by introducing some cross – links in the polymer chains.
Natural rubber is the most popular example of elastomers. A few more examples are buna-S, buna-N and neoprene.