Answer:-

The introduction of a network of cross-links into an elastomer is known as vulcanization. This process significantly improves various properties of natural rubber, such as tensile strength, stiffness, elasticity, toughness, and more. Here are two examples of elastomers and their respective vulcanizing agents:

a. Neoprene: The vulcanization of neoprene involves the use of MgO as a cross-linking agent. b. Buna-N: Sulfur is employed as the vulcanizing agent for Buna-N.

These agents facilitate the formation of cross-links within the elastomer, resulting in the desired enhancements in its mechanical properties.