Can anyone explain me polymerisation?
Polymerization is the process of formation of large gigantic molecules by joining together a large number of small molecules in a repeating manner. The small repeating units are called monomers. Monomers may be a single compound or more than one compound. Thus polythene is made only from ethylene, whereas nylon-66 is made from two monomers hexamethylene diamine and adipic acid, both containing six carbon atoms in their structure. Polymers of the former kind are called homopolymers, and the latter kind is known as copolymers. There is another popular classification based on the nature of the reaction of polymer formation. When the molecules of the monomers just add together to form a polymer, we get addition polymer. Example includes polyethylenes. When monomer units add together and the polymer is formed along with the elimination of a small molecule in each step, a condensation polymer is obtained. Example is the popular phenol-formaldehyde polymer, or bakelite.
Polymerisation is the process of covalently bonding of monomers to form polymers. Monomers are small molecules which join up to form polymers. polymer consists of repeating units of monomers which may be natural or synthetic macromolecule.