Chemical connections of monomers are called polymers.
They are macromolecules with the same inner structure.
Dependent on the amount of monomer types, polymers can be devided into homopolymers (one type of monomers), copolymer (multiple types of monomers) and polymerblends (multiple homopolymers and/or multiple copolymers).

Polymer in Injection Molding

Plastic: The Polymer Polyethylene.

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This glossary of plastic industry is provided by PLEXPERT Canada Inc.