1- Ethylene-2-pyrrolidinone

Commercial narrow standards [such as poly(ethylene glycol) (pEG), polystyrene sulfonate, pAA, poly w-vinyl pyrrolidinone, dextrans] are available from American Polymer Standards Corporation, Polymer Laboratories, Polymer Standards Service USA, Toyo Soda, and others. While these standards are often not as narrow as pSty or pMMA that has been anionically polymerized, they are acceptable for narrow standard calibrations. 

The resulting complexes can be effectively employed as single component catalysts to homopolymerize ethylene or copolymerize ethylene with acrylates [50, 51] and a variety of other polar monomers including vinyl ethers, [51,52] vinyl fluoride [53], iV-vinyl-2-pyrrolidinone, and AMsopropylacrylamide [54], In fact, the resulting catalysts are so robust that they can be used as single component catalysts in aqueous emulsion homo-polymerization of ethylene and copolymerization of ethylene with norbomenes and acylates [55]. 

Copolymers. Vinyl acetate copolymenzes easily with a few monomers, e g, ethylene, vinyl chloride, and vinyl neodecanoate, which have reactivity ratios close to its own. Block copolymers of vinyl acetate with methyl methacrylate, acrylic acid, acrylonitrile, and vinyl pyrrolidinone have been prepared by copolymerization in viscous conditions, with solvents that are poor solvents for the vinyl acetate macroradical,... 

In these equations I is the initiator and I- is the radical intermediate, M is a vinyl monomer, I—M- is an initial monomer radical, I—MnM- is a propagating polymer radical, and and M7 are polymer end groups that result from termination by disproportionation. Common vinyl monomers that can be homo-or copolymerized by radical initiation include ethylene, butadiene, styrene, vinyl chloride, vinyl acetate, acrylic and methacrylic acid esters, acrylonitrile, IV-vinylimidazole, IV-vinyl-2-pyrrolidinone, and others (2). 

METHYL-2-PYRROLIDINONE (872-50-4) Combustible liquid (flash point 204°F/ 96°C). A strong organic base. Incompatible with organic anhydrides, acrylates, alcohols, aldehydes, alkylene oxides, substituted allyls, cellulose nitrate, cresols, caprolactam solution, epichlorohydiin, ethylene dichloride, isocyanates, ketones, glycols, maleic anhydride, nitrates, phenols, vinyl acetate. Increases the explosive sensitivity of nitromethane. Attacks some plastics, rubber, and coatings. Attacks light metals. 

Synonyms 1-Ethenyl-2-pyrrolidinone homopolymer 1-Ethenyl-2-pyrroli-dinone polymers Poly 1-(2-oxo-1-pyrrolidinyl) ethylene] Polyvidone Polyvidonum Poly (n-vinylbutyrolactam) Po (1-vinyl-2-pyrrolidinone) homopolymer Polyvinylpyrrolidone Povidone PVPP N-Vinylbutyro-lactam polymer 1 -Vinyl-2-pyrrolidinone polymer Vinyl pyrrolidone homopolymer N-Vinylpyrrolidone polymer... 

The addition of a suitable amount of PC or a mixture of PC and EC to PEO-(LiX) does increase the room temperature conductivity of the electrolyte to >10" Scm but apparently with a significant reduction in its dimensional stability. This limitation, coming from the fact that PEO is soluble in PC or in a mixture of PC and EC, can be overcome with the use of polymers which are insoluble in the plasticizing solvents. Examples of such materials are the series of dimensionally stable polymer electrolyte films with conductivities of >10" Scm at room temperature we have prepared [33, 34]. A list of these electrolytes and their conductivities at 20°C is given in Table 3.7. They are obtained by immobilizing solutions of Li salts (i.e. Li salt-solvates) formed in a mixture of ethylene carbonate and propylene carbonate, in a polymer matrix such as poly(acrylonitrile), (PAN), poly[(tetraethylene glycol) diacrylate] (PEGDA), and poly(vinyl pyrrolidinone), (PVP). These polymers are insoluble in PC and EC/PC mixtures consequently, dimensionally stable... 

Polymer alloys were prepared by blending PE or its copolymer with lactams, then polymerizing the latter. For example, ethylene-vinyl pyrrolidinone copolymer, EVP, was blended with e-caprolactam for molding application ... 

After some time, ethylene glycol dimethacrylate and dry methanol were added and distillation was begun. The addition of methanol deblocks the trimethylsilyl methacrylate and converts it into methacrylic acid. Eventually, l-methyl-2-pyrrolidinone is added. This forms a butyl methacrylate, methacrylic acid, and ethylene glycol dimethacrylate star. 

Povidone Poly vi done Poljrvidon Pol jrvi donum Poly(iV-vinyl-2-pyrrolidinone) Poly(iV-vinylbutyrolactam) Poly( l-vmyl-2-p3rrrolidinone) l-Vinyl-2-p3nrolidinone polymer Poly l-(2-oxo-l-pyrrolinyl)ethylene ... 

Their hydrophilicity arises from the presence of water-solubilizing groups such as —OH, —COOH, —CONH2, —CONH—, —SO3H, and so on. Alternately, the main chain of the polymer may be water soluble, such as poly(ethylene oxide) derivatives (122), or based on acrylic, acrylamide, A-vinyl-2-pyrrolidinone, poly (vinyl alcohol), ionomers or glycopolymers (123). The insolubility arises from the presence of a three-dimensional network. The cross-links may be covalent, electrostatic, hydrophobic, or dipole-dipole in character. The extent of hydration may exceed a factor of 100, based on dry gel weight. 

Pyrrolidinone ethylene ketal allowed to react with 1 equivalent 4,5-methylene-dioxyphthalic anhydride in tetrahydrofuran, and the intermediate reduced in situ with LiAlH4 (cf. Synth. Meth. 9,114) product. Y 97%. B. Ganem, Tetrah. Let. 1971, 4105. 

A soln. of triethylamine in ethylene chloride added at 50° under argon to a mixture of 2-ethoxy-l-pyrroline, phenylacetic acid, and l-methyl-2-chloropyridi-nium iodide in the same solvent, stirred 2 hrs. at 50° and 15 hrs. at room temp. -> l-phenacetyl-2-pyrrolidinone. Y 90%. F. e. s. A. Ishida, T. Bando, and T. Mu-kaiyama, Chem. Lett. 1976, 711. 

Polyvinyl pyrollidone is also known as E1201 Kollidon (Scheme 5.5) Plasdone poly[l-(2-0X0-l-pyrrolidinyl)ethylene] polyvidone polyvinylpyrrolidone povidonum Povipharm PVP and l-vinyl-2-pyrrolidinone polymer. 

Four monomers were chosen for the preparation of multi-component hydrogels 2-hydroxyethyl methacrylate (HEMA), N-vinyl-2-pyrrolidinone (NVP), and poly(ethylene glycol) methacrylate (PEGMA) with average Mn of 360 were from Aldrich Chemical Company and purified by distillation 2-(N-ethylperfluorooctanesulfonamido)ethyl acrylate (FOSA) from 3 M and purified by recrystallisation firom methanol. 

Solubility of PVDF in some organic solvents. DEC, diethyl carbonate DlOX, dioxane DMA, dimethyl acetamide DMC, dimethyl carbonate DMF, dimethyl formamide DMI, 1,3-dimethyl-2-imidazolidinone DMSO, dimethyl sulfoxide EGDM, ethylene glycol dimethacrylate EP, l-ethyl-2-pyrrolidinone MEK, methyl ethyl ketone MP, l-methyl-2-pyrrolidinone NMP, N-mehtyl-2-pyrrolidone PC, propylene carbonate y-BL, y-butyrolactone . 

Ethenediyl) bis(5-(4-(ethylamino)-6-(phenylamino)-1,3,5-triazin-2-yl) amino) benzenesulfonic acid, disodium salt. See Disodium bisethylphenyl triaminotriazine stilbenedisulfonate Ethene, homopolymer. See Polyethylene Ethene, homopolymer, oxidized. See Polyethylene, oxidized Ethene oxide. See Ethylene oxide Ethene polymer. See Polyethylene Ethenol homopolymer. See Polyvinyl alcohol Ethenyl acetate, homopolymer. See Polyvinyl acetate Ethenylbenzenesulfonic acid, sodium salt, homopolymer 4-Ethenylbenzene-sulfonic acid sodium salt, homopolymer. See Sodium polystyrene sulfonate 1-Ethenyl-2-pyrrolidinone. See N-Vinyl-2-pyrrolidone l-Ethenyl-2-pyrrolidinone homopolymer. See PVP... 

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