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vinyl : ウィキペディア英語版
vinyl

In chemistry, vinyl or ethenyl〔
IUPAC Provisional Recommendations 2004 (Chapter 5 )
〕 is the functional groupCH=CH2, namely the ethylene molecule (H2C=CH2) minus one hydrogen atom. The name is also used for any compound containing that group, namely R−CH=CH2 where R is any other group of atoms.
An industrially important example is vinyl chloride, precursor to PVC, a plastic commonly known as ''vinyl''.
Vinyl is one of the alkenyl functional groups. On a carbon skeleton, ''sp''2-hybridized carbons or positions are often called vinylic. Allyls, acrylates and styrenics contain vinyl groups. (A styrenic crosslinker with two vinyl groups is called ''divinyl benzene''.)
==Etymology==
The etymology of ''vinyl'' is the Latin ''vinum'' = "wine", because of its relationship with alcohol (in its original sense of ethyl alcohol).
The term "vinyl" was coined by the German chemist Hermann Kolbe in 1851.〔H. Kolbe (1851), ("On the chemical constitution and nature of organic radicals," ) ''The Quarterly Journal of the Chemical Society of London'', 3 (4) : 369-405; see footnote on (page 376. )〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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