Polymers are the chemical substances which contain many structural units that are joined together by some chemical bond of the same type of linkage. Some of the common examples of polymers are DNA, anything made of plastic, cellulose in paper and trees, rubber, etc. Polymeric materials are used in the soil to enhance the growth of the plants. Moreover the tools which are used by the doctors in the Heart surgery is made up of polymers such as Dacron, Teflon and polyurethane. All things which are made up of polymers are mostly light weight.