1. Plural of isobutene; organic compounds with the molecular formula C₄H₈, consisting of a four-carbon chain with a branched structure; used in the production of synthetic rubber and other industrial chemicals.
Usage: chemistry; technical term; also called 2-methylpropene or isobutylene

Examples

• Isobutenes are key monomers in the synthesis of butyl rubber.
• The petrochemical industry produces isobutenes through the dehydrogenation of isobutane.
• Isobutenes polymerize readily to form high-molecular-weight polymers.
• Chemical engineers use isobutenes as feedstock for various industrial processes.
• The demand for isobutenes has increased due to their applications in fuel additives.