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Poly(ethyl vinyl ether)

CAS No.25104-37-4
Chemical Name:Poly(ethyl vinyl ether)
CBNumber:CB0365101
Molecular Formula:C4H8O
Formula Weight:72.11
MOL File:25104-37-4.mol

Poly(ethyl vinyl ether) Property

Density 0.968 g/mL at 25 °C (lit.)
Tg -60
vapor pressure 22.5 mm Hg ( 20 °C)
refractive index n20/D 1.454(lit.)
Flash point 140
form Viscous liquid
Viscosity 0.3 (20C)(Reduced viscosity)
InChI InChI=1S/C4H8O/c1-3-5-4-2/h3H,1,4H2,2H3
InChIKey FJKIXWOMBXYWOQ-UHFFFAOYSA-N
SMILES O(C=C)CC
CAS DataBase Reference 25104-37-4
Indirect Additives used in Food Contact Substances POLY(ETHYL VINYL ETHER)
EPA Substance Registry System Poly(vinyl ethyl ether) (25104-37-4)
UNSPSC Code 12162002
NACRES NA.23

Safety

Safety Statements :24/25
WGK Germany :3
RTECS :CQ6693000
Autoignition Temperature :446 °F
TSCA :TSCA listed
Toxicity :LD50 intraperitoneal in mouse: 2590mg/kg

NFPA 704:

	0
0		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordWarning
Hazard statements H226
Precautionary statements

Poly(ethyl vinyl ether) Price More Price(1)

Brand: Sigma-Aldrich(India)
Product number: 182656
Product name : Poly(ethyl vinyl ether)
Purity: average Mw ~3,800 by GPC
Packaging: 100G
Price: ₹11496.15
Updated: 2022/06/14
Buy: Buy

Poly(ethyl vinyl ether) Chemical Properties,Usage,Production

Chemical Properties Poly(ethyl vinyl ether) is a opaque amber viscous liquid, It is a hydrophobic material that is insoluble in water or other polar solvents.
Uses Poly(ethyl vinyl ether) can used as a plasticiser for cellulose nitrate and cellulose resin lacquers, as a base for pressure-sensitive adhesives in films and tapes, especially in surgical applications. Also used for non-irritating surgical casts requiring moisture permeability and to impart dry-film flexibility and increased viscosity of photochemical resist-coating compositions.
Preparation To a flask containing 200 gm of benzene is added 1.0 gm of aluminum chloride. The mixture is stirred vigorously to suspend the catalyst and then the gradual addition of 200 gm (2.78 moles) of vinyl ether is begun. The reaction is exothermic, and when the temperature rises to 60°-80°C the addition is slowed so that only 1-2 gm of vinyl ethyl ether is added at one time. Polymerization is detected by the onset of turbidity and a slight brown color. When the brown color disappears, the next increment of vinyl ethyl ether is added. After the complete addition the reaction mixture is heated to 80°C. The benzene and volatiles are steam-distilled off, and the residue amounts to about 144 gm (72%) of a yellow balsamlike product.

Preparation of Poly(vinyl ethyl ether) Using Aluminum Chloride Catalyst
Hazard Moderately toxic.
Safety Profile Moderately toxic by intraperitoneal route. When heated to decomposition it emits acrid smoke and irritating vapors.
Solubility in organics alcohols, aliphatic, aromatic and chlorinated hydrocarbons, esters, ketones