In contrast, the feedstocks for polymers derived from petrochemicals will eventually deplete.

More useful are polymers derived from thiophenes substituted at the 3- and 3- and 4- positions.

Their production typically includes a natural polymer, often derived from tissue, and a chemical agent to cross-link the polymer chains.

Biopolymers are polymers derived from biomass.

Cellulose, a crystalline polymer derived from glucose, constitutes about 41-43%.

Most commercial plastics are synthetic polymers derived from petrochemicals.

These are organic charge-transfer complexes and various linear-backbone conductive polymers derived from polyacetylene.

Starch and cellulose are polymers derived from the dehydration of -glucose.

Vinyl polymers are a group of polymers derived from vinyl monomers.

Polyvinyl is a group of polymers derived from vinyl monomers.