Vinyl formate

Resin and Polymer Solvent. Dimethylacetamide is an exceUent solvent for synthetic and natural resins. It readily dissolves vinyl polymers, acrylates, ceUulose derivatives, styrene polymers, and linear polyesters. Because of its high polarity, DMAC has been found particularly useful as a solvent for polyacrylonitrile, its copolymers, and interpolymers. Copolymers containing at least 85% acrylonitrile dissolve ia DMAC to form solutions suitable for the production of films and yams (9). DMAC is reportedly an exceUent solvent for the copolymers of acrylonitrile and vinyl formate (10), vinylpyridine (11), or aUyl glycidyl ether (12). 

Poly(vinyl alcohol) can be derived from the hydrolysis of a variety of poly(vinyl esters), such as poly(vinyl acetate), poly(vinyl formate), and poly(vinyl ben2oate), and of poly(vinyl ethers). However, all commercially produced poly(vinyl alcohol) is manufactured by the hydrolysis of poly(vinyl acetate). The manufacturing process can be viewed as one segment that deals with the polymeri2ation of vinyl acetate and another that handles the hydrolysis of poly(vinyl acetate) to poly(vinyl alcohol). 

Formate esters generally become less toxic as the alcohol moiety increases up to C. With this increase in alkyl si2e, the LD q (oral, rabbit) increases from 1.62 g/kg for methyl formate to 3.0 g/kg for isoamyl formate [110-45-2]. In comparison, both aHyl and vinyl formates are more toxic than their saturated analogues. 

Vinyl formates readily react with amines, alcohols, and phenols to give the formamide or ester. " ... 

ETHYLENE GLYCOL ETHYL MERCAPTAN DIMETHYL SULPHIDE ETHYL AMINE DIMETHYL AMIDE MONOETHANOLAMINE ETHYLENEDIAMINE ACRYLONITRILE PROPADIENE METHYL ACETYLENE ACROLEIN ACRYLIC ACID VINYL FORMATE ALLYL CHLORIDE 1 2 3-TRICHLOROPROPANE PROPIONITRILE CYCLOPROPANE PROPYLENE 1 2-DICHLOROPROPANE ACETONE ALLYL ALCOHOL PROPIONALDEHYDE PROPYLENE OXIDE VINYL METHYL ETHER PROPIONIC ACID ETHYL FORMATE METHYL ACETATE PROPYL CHLORIDE ISOPROPYL CHLORIDE PROPANE... 

PROPARGYL ALCOHOL ACRYLIC ACID beta-PROPIOLACTONE VINYL FORMATE ETHYLENE CARBONATE PYRUVIC ACID 3-BROMO-1-PROPENE... 

In all of these systems, there is a tendency to form more isotactic triads than heterotactic triads (coming from an s to an i addition) with increasing temperature. With the exception of vinyl formate, all differences (AHzf/i — Aff ) are positive however. A formation of heterotactic triads (from an i to an s addition) is thus favored over the formation of syndiotactic triads with increasing temperature. Because the syndio-... 

Ethanolamine perchlorate, see 2-Hydroxyethylaminium perchlorate, 0947a f Ethanoyl chloride, see Acetyl chloride, 0731 Etheneamine, see Vinylamine, 0860 f Ethene, see Ethylene, 0777 Ethenone, see Ketene, 0718 f 3-Ethenoxypropene, see Allyl vinyl ether, 1898 Ethenylbenzene, see Styrene, 2940 f Ethenyl ethanoate, see Vinyl acetate, 1527 f Ethenyl methanoate, see Vinyl formate, 1146 A-Ethenyloxybenzenecarboximidamide, 3142b f Ethenyltrichlorosilane, see Trichlorovinylsilane, 0743 4-Ethoxybutyldiethylaluminium, 3366... 

Addition of hexafluorobutyne to CpW(CO)3SR (R = Me, Et, Pr ) also yields 172-vinyl products (189). Isolation of Cp(CO)2W[Tj2-CF3CC(CF3)-C(O)SMe) reflects CO insertion in addition to i72-vinyl formation (190). Other alkyne insertion products have been identified as well Cp-... 

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