Vinyl
From Free net encyclopedia
- For other uses, see Vinyl (disambiguation).
Image:Vinyl.jpg A vinyl is any organic compound that contains a vinyl group, −CH=CH2. These are derivatives of ethene (also known as ethylene), CH2=CH2, with one hydrogen atom substituted with some other group.
The vinyl group forms part of the allyl group and is also contained in all acrylates. Many alkenes contain a vinyl group.
Because of the highly reactive double bond, vinyls can be made to polymerize, forming vinyl polymers. In these polymers, the double bonds of the vinyl monomers turn into single bonds and the different monomers are joined by single bonds. This is an instance of addition polymerization.
Polymers
- Polyvinyl chloride (PVC) is made by polymerization of the monomer vinyl chloride (chloroethene) CH2=CHCl
- Polyvinyl acetate (PVAc) is made by polymerization of vinyl acetate. In a water suspension, this is used as a glue.
- Polyvinyl alcohol (PVA) is produced by hydrolysis of polyvinyl acetate. (Not by polymerization of the monomer vinyl alcohol or ethenol, which is a unfavored keto-enol tautomer of acetaldehyde.)
Etymology and other uses
The etymology of vinyl is the Latin vinum = "wine", because of its relationship with alcohol (in its original sense of ethyl alcohol).
The 'slang' term vinyl is commonly used for products that contain PVC, such as vinyl records, vinyl roofs, vinyl siding, and vinyl strapping.
Template:Organic-compound-stubar:فينيل (Vinyl) da:Vinyl de:Vinylgruppe es:Vinilo fr:Vinyle ko:비닐 he:ויניל nl:Vinyl no:Vinyl fi:Vinyyli sv:Vinylgrupp