Isoprene
= Isoprene
{title2=$\mathrm{CH_2=C(CH_3)CH=CH_2}$}
<Isoprene> is 2-methylbuta-1,3-diene, $\mathrm{C_5H_8}$. Its two carbon-carbon <double bonds> form a conjugated system.
Polymerization of <isoprene> can generate different chain geometries. The configuration and connectivity of the repeating units influence the properties of the resulting <polymer>, so monomer identity alone does not completely specify a rubber-like material.