- Vinyl polymer
group (C=C) into a chain (..-C-C-C-C-..). In popular usage, "vinyl" refers only to PVC. Vinyl polymers are the most common type of plastic:
*Polymerized simple alkenes:
polyethylenefrom ethene, polypropylenefrom propeneand polybutadienefrom butadiene.
Polystyreneis made from styreneor "vinyl benzene".
Polyvinyl chloride(PVC) is made by polymerizationof 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 hydrolysisof polyvinyl acetate. (Not by polymerization of the monomer vinyl alcohol or ethenol, which is an unfavored keto-enol tautomerof acetaldehyde.)
Polyacrylonitrileis prepared from acrylonitrile
Other vinyl monomers with a 1,2-substitution pattern do as a general rule not polymerize due to
steric hindranceit is thermodynamically still favorable. As an exception it was found [Polymerization of "Unpolymerizable" Molecules through Topological Control Seth Washburn, Jochen Lauterbach, and Christopher M. Snively Macromolecules; 2006; 39(24) pp 8210 - 8212; (Communication to the Editor) DOI| 10.1021/ma061724j] that the monomer fumaronitrile (related to fumaric acidand also to acrylonitrilebut with an extra nitrile group) does polymerize but only in a very special way
A very thin film of monomer was prepared in a
vacuum chamberon a tantalumsubstrate at -173 °Cand then photopolymerized. Due to the poor penetration depth of the radiation, thin polymer films with thickness several micrometres were obtained nevertheless with degree of polymerizationin the 10,000 range. The polymerization is able to take place because the monomer molecules in the film are completely disorganized (isotropic) and therefore there is always a possibility for two monomers to react which they do not have in the crystalline phase.
The Vinyl Institute
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vinyl polymer — noun a thermoplastic derived by polymerization from compounds containing the vinyl group • Syn: ↑vinyl resin, ↑polyvinyl resin • Hypernyms: ↑synthetic resin • Hyponyms: ↑polyvinyl acetate, ↑PVA, ↑ … Useful english dictionary
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vinyl polymer — /vaɪnəl ˈpɒləmə/ (say vuynuhl poluhmuh) noun one of a group of compounds derived from vinyl compounds such as vinyl acetate, styrene, etc., by polymerisation, forming plastics and resins of high molecular weight … Australian English dictionary
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Vinyl — A vinyl compound is any organic compound that contains a vinyl group (also called ethenyl), −CH=CH2. These are derivatives of ethene, CH2=CH2, with one hydrogen atom substituted with some other group.A related phrase is vinylidene which stands… … Wikipedia
vinyl resin — noun a thermoplastic derived by polymerization from compounds containing the vinyl group • Syn: ↑vinyl polymer, ↑polyvinyl resin • Hypernyms: ↑synthetic resin • Hyponyms: ↑polyvinyl acetate, ↑PVA, ↑ … Useful english dictionary
vinyl — /ˈvaɪnəl / (say vuynuhl) noun 1. any of various vinyl polymers, especially that used in the making of gramophone records. 2. Colloquial records, viewed collectively: I ve got vinyl and no CDs. –adjective 3. Chemistry of or relating to, or… … Australian English dictionary
Vinyl chloride — IUPAC name … Wikipedia
vinyl resin — ☆ vinyl resin n. a polymer formed from vinyl compounds, used with other resins, plasticizers, etc. to produce various solid vinyl plastics … English World dictionary