are large molecules composed of smaller molecules called monomers. Monomers are produced and either grow together or are assembled to produce a single polymer. There are synthetic and natural . Some examples of natural would be wood, starches, fingernails, and hair. Synthetic are usually referred to as plastics. Petroleum, is the primary monomer used to produce . An English chemist named Alexander Parkes was the first scientist to produce the first synthetic polymer in 1862. John Wesley Hyatt, an American, was the first person to produce a ....