A polymer may be a large molecule, or macromolecule, composed of the many repeated subunits. thanks to their broad range of properties, synthetic and natural polymers play essential and ubiquitous roles in life style . Polymers range from familiar synthetic plastics like polystyrene to natural biopolymers like DNA and proteins that are fundamental to biological structure and performance . Polymers, both natural and artificial, are created via polymerization of the many small molecules, referred to as monomers. Their consequently large molecular mass, relative to small molecule compounds, produces unique physical properties including toughness, viscoelasticity, and a bent to form glasses and semi crystalline structures rather than crystals.. Polymers are of two types: present and artificial or artificial. Natural polymeric materials like hemp, shellac, amber, wool, silk, and natural rubber are used for hundreds of years. A variety of other natural polymers exist, like cellulose, which is that the main constituent of wood and paper. The list of synthetic polymers, roughly so as of worldwide demand, includes polyethylene, polypropylene, polystyrene, PVC, rubber , phenol formaldehyde resin (or Bakelite), neoprene, nylon, polyacrylonitrile, PVB, silicone, and lots of more. More than 330 million plenty of these polymers are made per annum. Many other structures do exist; for instance, elements like silicon form familiar materials like silicones, examples fooling around Putty and waterproof plumbing sealant. Oxygen is additionally commonly present in polymer backbones, like those of polyethylene glycol, polysaccharides.