Maleic anhydride-ethyl vinyl ether

PVCC. See Polyvinyl chloride, chlorinated PVC/PVA PVCA/A copolymer. See Vinyl chloride/vinyl acetate copolymer PVDC. See Polyvinylidene chloride PVDF. See Polyvinylidene fluoride resin PVE. See Polyvinyl ethyl ether PVF PVFM. See Polyvinyl formal PVI. See Polyvinyl isobutyl ether PVM. See Polyvinyl methyl ether PVM/MA. See PVM/MA copolymer PVM/MA copolymer CAS 9011-16-9 52229-50-2 Synonyms 2,5-Furandione, polymer with methoxyethene 2,5-Furandione, polymer with methoxyethylene Methyl vinyl ether/maleic anhydride copolymer Poly (maleic anhydride-methyi vinyl ether) Poly (methyl vinyl ether-alt-maleic anhydride)... 

Finally the results recently reported by DUBIN and Strauss are certainly worth mentioning, Potentiometric titration of alternating copolymers of maleic anhydride and n-butyl ether indicates that there occurs a conformational transition which is not exhibited by a copolymer of maleic anhydride and ethyl vinyl ether (Fig. 7). The anomalous behavior of the butyl copol3mier is clearly cormected with the establishment of hydrophobic interactions among the butyl groups. Dubin and Strauss conclude that the maleic anhydride and n-butyl vinyl ether copolymer is hypercoiled in dilute aqueous solution. These authors also point out that the behavior of the latter copolymer is identical with that previously found for highly charged polysoaps. 

New macroradicals have been obtained by proper solvent selection for the homopolymerization of styrene, methyl methacrylate, ethyl acrylate, acrylonitrile, and vinyl acetate, and by the copolymerization of maleic anhydride with vinyl acetate, vinyl isobutyl ether, or methyl methacrylate. These macroradicals and those prepared by the addition to them of other monomers were stable provided they were insoluble in the solvent. Since it does not add to maleic anhydride chain ends, acrylonitrile formed a block copolymer with only half of the styrene-maleic anhydride macroradicals. However, this monomer gave excellent yields of block polymer when it was added to a macroradical obtained by the addition of limited quantities of styrene to the original macroradical. Because of poor diffusion, styrene did not add to acrylonitrile macroradicals, but block copolymers formed when an equimolar mixture of styrene and maleic anhydride was added. 

BenzolMfurans yielded (2 + 2)-cycloadducts (191) with dimethyl-maleic anhydride, via excitation of an initially formed charge-transfer complex, together with oxetans.218 Similar (2 + 2)-cycloadducts (192) were obtained from quinones and benzoU>] furan and some of its derivatives.143,200 Irradiation of W-acyl-l//-indoles in the presence of olefins, either with or without acetophenone as a sensitizer, produced a series of (2 + 2)-cycloadducts 193, usually as a mixture of exo- and endoisomers.219 The olefins that give a (2 + 2)-cycloadduct are either electron-rich olefms, such as ethyl vinyl ether and vinyl acetate, or... 

Poly(maleic anhydride-co-ethyl vinyl ether) 435... 

Methyl acrylate Ethyl acrylate Butyl acrylate Dodecyl acrylate Methyl methacrylate Butyl methacrylate Octyl methacrylate Dodecyl methacrylate Acrylonitrile Vinyl acetate Vinyl stearate Vinyl pelargonate Methyl vinyl ether Ethyl vinyl ether Octyl vinyl ether Dodecyl vinyl ether Vinyl chloride Vinyl bromide Vinyl iodide Methyl acrylate Butyl acrylate Octyl acrylate Dodecyl acrylate Octadodecyl acrylate Maleic anhydride Tetrachloroethylene Methyl methacrylate Butyl methacrylate Octyl methacrylate Vinyl chloride Vinyl chloride Ethyl vinyl ether Butyl vinyl ether Heptyl vinyl ether Hexadecyl vinyl ether Methyl methacrylate Butyl methacrylate Heptyl methacrylate Hexadecyl methacrylate Maleic anhydride Vinyl acetate Methyl acrylate Methyl methacrylate Diethyl maleate... 

Butler and Campus [40] undertook a study to provide further evidence of the formation of the charge-transfer complex between the comonomers and of its participation in the cyclocopolymerization. The 1,4-diene used was divinyl ether (DVE) and the monoolefins were maleic anhydride (MA) and fumaronitrile (FN). The results of the determination of the composition of the charge-transfer complex formed between DVE-MA are shown in Figure 5. Acrylonitrile (AN) was used as the third monomer in the terpolymerization experiments. For comparison, the results of a complex study of styrene-maleic anhydride and ethyl vinyl ether (EVE)-maleic anhydride were also reported. The results of determination of the equilibrium constants for the DVE-MA and styrene-MA complexes by the NMR method are shown in Figure 6. The results... 

Zeegers and Butler [43] studied the kinetics of the AIBN-initiated copolymerization of divinyl ether and ethyl vinyl ether with maleic anhydride in seven different solvents. The yield at 100% conversion as a function of the feed composition when the total monomer concentration was kept constant gave confirmation of the composition of these copolymers Divinyl ether maleic anhydride=l 2 and ethyl vinyl ether maleic anhydride = 1 1. The study of the initial rate as a function of the feed composition made it possible to determine the relative values of the different propagation rate constants consistent with a mechanism by successive and selective additions. In the ethyl vinyl ether-maleic anhydride system, addition of ethyl vinyl ether is slower than addition of maleic anhydride in the divinyl ether-maleic anhydride system, the addition of divinyl ether is slower than addition of the first molecule, while addition of the second maleic anhydride molecule is slower than the first one. The study of... 

Copolymerization of Maleic Anhydride with Ethyl Vinyl Ether. 249... 

To a 250-ml 3-necked flask equipped with a magnetic stirring bar, condenser, thermometer, and gas inlet-outlet is added a benzene solution (toluene can be used in place and is less toxic) of 10.77 gm (0.1098 mole) of maleic anhydride and 0.04514 gm (1.863 x lO"" mole) of benzoyl peroxide. Dry nitrogen (oxygen-free) is flushed for 45 min through the flask, and then 9.11 gm (0.1214 mole) of ethyl vinyl ether is injected into the flask via a septrum seal on one of the necks. The reaction mixture is stirred and heated for 8 hours at 59°-61°C. The white precipitate is filtered and dissolved in 125 ml of acetone. The product is isolated from the acetone by gradually... 

Poly(ethyl vinyl ether-co-maleic anhydride) Water 93 ... 

As expected for inverse-electron-demand cycloadditions, the more electron-rich alkene, ethyl vinyl ether, starts reacting even at 100 °C and after lOh at 150-160 °C the yield of the cycloadduct reaches 90% [167c]. In comparison, the electron-poor ethyl acrylate requires lOh at 170 °C to form 60% of the cycloadduct. Doubly deactivated alkenes, such as maleic anhydride, do not participate in the cycloaddition at all, as do electron-neutral or electron poor alkynes. 

Poly(maleic anhydride-co-vinyl ethyl ether)... 

Ethyl and butyl esters of poly(vinyl methyl ether)/maleic anhydride (PVM/MA) copolymer were introduced in the early 1960s for use in hair sprays. These polymers also have free carboxy acid groups that can be neutralized. Recommended neutralization is 10%, but products can be found in the range of 5—30%, and recommended neutralizers include ammonium hydroxide, aminomethyl propanol, and triisopropano1 amine. These were the most widely used polymers in hair sprays before their use decreased dramatically in the early 1990s. 

EINECS 203-468-6, see Ethylenediamine EINECS 203-470-7, see Allyl alcohol EINECS 203-472-8, see Chloroacetaldehyde EINECS 203-481-7, see Methyl formate EINECS 203-523-4, see 2-Methylpentane EINECS 203-528-1, see 2-Pentanone EINECS 203-544-9, see 1-Nitropropane EINECS 203-545-4, see Vinyl acetate EINECS 203-548-0, see 2,4-Dimethylpentane EINECS 203-550-1, see 4-Methyl-2-pentanone EINECS 203-558-5, see Diisopropylamine EINECS 203-560-6, see Isopropyl ether EINECS 203-561-1, see Isopropyl acetate EINECS 203-564-8, see Acetic anhydride EINECS 203-571-6, see Maleic anhydride EINECS 203-576-3, see m-Xylene EINECS 203-598-3, see Bis(2-chloroisopropyl) ether EINECS 203-604-4, see 1,3,5-Trimethylbenzene EINECS 203-608-6, see 1,3,5-Trichlorobenzene EINECS 203-620-1, see Diisobutyl ketone EINECS 203-621-7, see sec-Hexyl acetate EINECS 203-623-8, see Bromobenzene EINECS 203-624-3, see Methylcyclohexane EINECS 203-625-9, see Toluene EINECS 203-628-5, see Chlorobenzene EINECS 203-630-6, see Cyclohexanol EINECS 203-632-7, see Phenol EINECS 203-686-1, see Propyl acetate EINECS 203-692-4, see Pentane EINECS 203-694-5, see 1-Pentene EINECS 203-695-0, see cis-2-Pentene EINECS 203-699-2, see Butylamine EINECS 203-713-7, see Methyl cellosolve EINECS 203-714-2, see Methylal EINECS 203-716-3, see Diethylamine EINECS 203-721-0, see Ethyl formate EINECS 203-726-8, see Tetrahydrofuran EINECS 203-729-4, see Thiophene EINECS 203-767-1, see 2-Heptanone EINECS 203-772-9, see Methyl cellosolve acetate EINECS 203-777-6, see Hexane EINECS 203-799-6, see 2-Chloroethyl vinyl ether EINECS 203-804-1, see 2-Ethoxyethanol EINECS 203-806-2, see Cyclohexane EINECS 203-807-8, see Cyclohexene EINECS 203-809-9, see Pyridine EINECS 203-815-1, see Morpholine EINECS 203-839-2, see 2-Ethoxyethyl acetate EINECS 203-870-1, see Bis(2-chloroethyl) ether EINECS 203-892-1, see Octane EINECS 203-893-7, see 1-Octene EINECS 203-905-0, see 2-Butoxyethanol EINECS 203-913-4, see Nonane EINECS 203-920-2, see Bis(2-chloroethoxy)methane EINECS 203-967-9, see Dodecane EINECS 204-066-3, see 2-Methylpropene EINECS 204-112-2, see Triphenyl phosphate EINECS 204-211-0, see Bis(2-ethylhexyl) phthalate EINECS 204-258-7, see l,3-Dichloro-5,5-dimethylhydantoin... 

Diels-Alder reaction, of acrolein with -butyl cyclohexenyl ether, n-butyl vinyl ether, and ethyl iso-propenyl ether, 34,30 of butadiene with maleic anhydride, 30,93... 

MVE/MAN Copolymem. Various iuol wl grades of polv(melliyl vinyl ether-co-maleic anhydride) (PMVEMA) are available. PMVEMA, supplied as a white, fluffy powder, is soluble in ketones, esters, pyridine, lactams, and aldehydes, and insoluble in aliphatic, aromatic, or halogenated hydrocarbons, as well as in ethyl ether and nitroparaffins. When the copolymer dissolves in water or alcohols, the anhydride group is cleaved, forming the polymers in free acid form or the half-esters of the corresponding alcohol, respectively. 

Several polymers were found to fit all or most of the above criteria and were used to prepare the carrier films. Many polymers have been used for this purpose, viz., ethyl cellulose, poly(y-benzyl glutamate), poly(vinyl acetate), cellulose acetate phthalate, and the copolymer of methyl vinyl ether with maleic anhydride. In addition to the base polymers, plasticizers were often needed to impart a suitable degree of flexibility. Plasticizers, which are found to be compatible with polymeric materials include, acetylated monoglycerides, esters of phthalic acid such as dibutyl tartarate, etc. An excipient was usually incorporated into the matrix of the carrier films. The excipients used were water-soluble materials, which are capable of creating channels in the polymer matrix and facilitate diffusion of the drug. PEGs of different molecular weights were used for this purpose. 

Neutral or negatively charged polymeric resins are commonly employed to provide styling benefits in products such as mousses, gels, hairsprays, and setting lotions. Typical examples in use today are the copolymer of vinyl acetate and cro-tonic acid, the copolymer of polyvinyl pyrrolidone and vinyl acetate (PVP/VA), the ethyl ester of the copolymer of polyvinyl methyl ether and maleic anhydride (PVM/MA), and the copolymer of octylacrylamide/acrylates/butylaminoethyl methacrylate (Amphomer). 

Monomers 4VP, 4-vinylpyridine NIPAAm, jV-isopropylacrylamidc AA, acrylic acid PEGMA, poly (ethylene glycol) methacrylate SPE, MAI-dimethyl-AW2-methacryloyloxycthyl-/V-0-sulfopropyl)amm<>-nium betaine AMPS, 2-acrylamido-2-methyl-l-propanesulfonic acid qDMAEMA, quaternary 2-dimethylaminoethyl methacrylate St, styrene HEMA, 2-hydroxyethyl methacrylate HEA, 2-hydro-xyethyl acrylate DMAEMA, 2-dimethylaminoethyl methacrylate MAA, methacrylicacid NaSS sodium p-styrene sulfonate AC, [(2-acryloyloxy)ethyl]trimethyl ammonium chloride GMA, glycidyl methacrylate NVP, jV-vinylpyrrolidone MAn, maleic anhydride BVE n-butyl vinyl ether AAm, acrylamide DEAAm, MA-diethylacrylamidc DMAAm, MA -dimethylacrylamidc MMA, methyl methacrylate. 

---