Description: Thermosetting resins harden by chemical crosslinking reactions among the
molecules that make up the plastic and become thermosets. They
cannot be remelted and reformed because they decompose chemically upon
reheating.
Facts: Thermosets are usually generated from polymers with low molecular weights
(i.e. shorter polymers) because the thermosetting process results in
crosslinking among the smaller molecules and theoretically the formation of
one giant molecule.
Description: Polyvinyl chloride is a commonly used thermoplastic. Polyvinyl chloride is
the largest polymer in the vinyl group and the most versatile of the
thermoplastics.