Isoprene

Isoprene is a common organic compound with the formula CH2=C(CH3)−CH=CH2. In its pure form it is a colorless volatile liquid. Isoprene is produced by many plants, and its polymers are the main component of natural rubber.

Production

Isoprene is produced and emitted by many species of trees (major producers are oaks, poplars, eucalyptus, and some legumes). Yearly production of isoprene emissions by vegetation is around 600 million metric tons, half from tropical broadleaf trees and the remainder primarily from shrubs.

Uses

Isoprene is most readily available industrially as a byproduct of the thermal cracking of naphtha or oil. About 95% of isoprene production is used to produce cis-1,4-polyisoprene—a synthetic version of natural rubber.

Health and safety

Isoprene is a possible carcinogen. Prolonged exposure and inhalation may cause respiratory tract irritation and central nervous system effects.

See also

• Polymer
• Natural rubber
• Carcinogen

References

Isoprene Resources
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