Polymers; They are macromolecules made up of smaller, repeating monomeric sub-segments linked together to form chains. Polymerization reactions that are being investigated widely; provides high-value, high-performance engineering materials used in our homes, automobiles and even our bodies. For these polymers, a comprehensive understanding of polymerization reactions and the control of all reaction variables are crucial to the production of a material that meets the end-use needs and related specifications.