Monomer

A monomer (/ˈmɒnəmər/ MON-ə-mər; mono-, 'one' + -mer, 'part') is a molecule that 'can undergo polymerization, thereby contributing constitutional units to the essential structure of a macromolecule'. Large numbers of monomers combine to form polymers in a process called polymerization. A monomer (/ˈmɒnəmər/ MON-ə-mər; mono-, 'one' + -mer, 'part') is a molecule that 'can undergo polymerization, thereby contributing constitutional units to the essential structure of a macromolecule'. Large numbers of monomers combine to form polymers in a process called polymerization. Monomers can be classified in many ways. They can be subdivided into two broad classes, depending on the kind of the polymer that they form. Monomers that participate in condensation polymerization have a different stoichiometry than monomers that participate in addition polymerization: