Chemical Compound with high Molecular Weight consisting of a number of structural units linked together by covalent bonds.
The simple Molecules that may become structural units are themselves called monomers. A
structural unit is a group having two or more bonding sites. In a linear polymer, the
monomers are connected in a chain arrangement and thus need only have two bonding
sites. When the monomers have three bonding sites, a nonlinear, or branched,
polymer results. Naturally occurring polymers include Cellulose, Proteins,
natural Rubber, and Silk; those synthesized in the laboratory have led to such commercially important
products as Plastics, synthetic fibers, and synthetic rubber.