One of the mysteries of the English language finally explained.
An uncharged molecule (typically highly reactive and short-lived) having an unpaired valency electron.
- ‘It is produced through a free radical polymerization reaction of styrene monomers.’
- ‘These free radicals are highly reactive chemically and can themselves alter molecules in the cell.’
- ‘In the free radical polymerization of ethylene to form polyethylene, a small amount of a peroxide is added to a large volume of ethylene.’
- ‘This free radical attacks the double bonds on other monomers creating a longer chain molecule and an additional free radical.’
- ‘It is well known that high-temperature free radical reactions can be quenched by the presence of nitric oxide, itself a free radical.’
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