polymers are macromolecules formed from same or different type of small molecule.the term polymer is a Greek word(poly=many,mer=part ).The smallest molecules that form the repeating unit in polymer are known as
monomer unit.The process by which a polymer is produced from monomers known as
polymerization.
for example consider the polymerization of ethylene monomers to form poly ethylene.
n(CH2=CH2)->



-(CH2-CH2-CH2-CH2)-n
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