A chemical group consisting of the ethene molecule with one hydrogen removed, allowing it to attach to other molecules, also called vinyl.
From ethene + -yl (substituent group suffix). The ethenyl or vinyl group (CH2=CH-) is crucial in polymer chemistry and describes how ethene-based units link together.
The ethenyl group is the building block of vinyl chloride, which becomes PVC plastic used in everything from pipes to rain jackets—one of the most abundant polymers in modern life!
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