Polymers are made by joining small molecules into large ones.But most of these monomer molecules are perfectly stable as they are, so they have devised two general methods to make them react with each other, building up the backbone chain as the reaction proceeds. This method (also known as step-growth) requires that the monomers possess two or more kinds of functional groups that are able to react with each other in such a way that parts of these groups combine to form a small molecule (often H2O) which is eliminated from the two pieces. 2 Additional Polymerisation: Polymer play a major role in various industry sector and which are used in plastic bags ,water pipes outer layer of electric wires clothing and,woven fabric and also other materials. PLASTIC BAGS: WATER PIPES OUTER LAYER OF ELECTRIC WIRES: Outer layer of insulator is also called as electric insulator. It is the most commonly used thermoplastic insulator for cables. It is cheap, durable and widely available. However, the chlorine in PVC (a halogen) causes the production of thick, toxic, black smoke when burnt and can be a health hazard in areas where low smoke and toxicity are required Normal operating temperatures are typically between 75C and 105C (depending on PVC type). CLOTHING: Solution Polymers are made by joining small molecules into large ones.But most of these monomer molecules are perfectly stable as they are, so they have devised two general methods to make them react with each other, building up the backbone chain as the reaction proceeds. This method (also known as step-growth) requires that the monomers possess two or more kinds of functional groups that are able to react with each other in such a way that parts of these groups combine to form a small molecule (often H2O) which is eliminated from the two pieces. 2 Additional Polymerisation: Polymer play a major role in various industry sector and which are used in plastic bags ,water pipes outer layer of electric wires clothing and,woven fabric and also other materials. PLASTIC BAGS: WATER PIPES OUTER LAYER OF ELECTRIC WIRES: Outer layer of insulator is also called as electric insulator. It is the most commonly used thermoplastic insulator for cables. It is cheap, durable and widely available. However, the chlorine in PVC (a halogen) causes the production of thick, toxic, black smoke when burnt and can be a health hazard in areas where low smoke and toxicity are required Normal operating temperatures are typically between 75C and 105C (depending on PVC type). CLOTHING:.