Aliphatic esters methyl acrylate

Polymerization of bis[ -(allyloxycarbonyl)phenyl] esters of aliphatic and aromatic dicarboxylic acids to produce highly cross-linked polymers witii good optico-mechanical properties [126]. This study should be compared with the more recent work of Ref. [80a] on the polymerization of ethyl a-[(allyloxy)methyl]acrylate. 

Poly(methyl methacrylate) prepared by free radical polymerization is amorphous and is therefore soluble in solvents of similar solubility parameter. Effective solvents include aromatic hydrocarbons such as benzene and toluene chlorinated hydrocarbons such as chloroform and ethylene dichloride and esters such as ethyl acetate and amyl acetate. Some organic materials, although not solvents for the polymer, cause crazing and cracking, e.g., aliphatic alcohols and amines. Poly(methyl methacrylate) has very good resistance to attack by water, alkalis, aqueous inorganic salts and most dilute acids. Some dilute acids such as hydrocyanic and hydrofluoric acids, however, do attack the polymer, as do concentrated oxidizing acids. Poly(methyl methacrylate) has much better resistance to hydrolysis than poly(methyl acrylate), probably by virtue of the... 

The monomers which have been investigated include methyl methacrylate, ethyl acrylate ester, hydroxy acrylates and methacrylates, acrylonitrile, vinyl acetate, vinyl chloride, acrylamide, vinylidene chloride, acrylic acid, vinyl pyrollidone and styrenec Many copolymer latexes of these monomers have also been preparedc Undoubtedly the most amenable system for model studies is methyl methacrylate in aliphatic hydrocarbono... 

ACRYLIC ACID, METHYL ESTER (96-33-3) Forms explosive mixture with air (flash point 27°F/—3°C oc). Forms unstable peroxides in storage. Heat above 70°F/2I°C, light, and/or lack of appropriate inhibitor concentration can cause explosive polymerization. Elevated temperatures may cause storage containers to explode. Violent reaction with strong oxidizers. Incompatible with strong acids, alkalis, aliphatic amines, alkanolamines. Usually stored in ambient air below 50°F/10°C. The uninhibited monomer vapor may block vents and confined spaces by forming a solid polymer material. 

Synonyms Acrylic acid methyl ester Methoxycarbonylethylene Methyl propenate Methyl propenoate Methyl 2-propenoate Propenoic acid methyl ester 2-Propenoic acid meth ester Classification Aliphatic organic compd. 

Acrylic sealants are water-based but they may also contain ethylene and propylene glycols, mineral spirits and mineral oil. There are also solvent-based aerylie sealants which contain substantial amounts of solvents sueh as mineral spirits, toluene and xylene. Polysulfide sealants usually contain toluene but methyl ethyl ketone is also used. The group of class B sealants contains substantially more solvents (up to 40% by volume) but there are some exceptions. PVC sealants are based on plastisols and they ean be made without solvents. Butyl rubber based sealants usually eontain hydroearbons (Q-Cn). Styrene-buta-diene-styrene based sealants usually have a large amount of solvents seleeted from a group including toluene, heptane, hexane, methyl ethyl ketone, isobutyl isobutyrate, n-amyl acetate, n-amyl ketone. They are usually processed in solvent mixtures. Polyehloroprene is usually dissolved in a mixture of solvents ineluding ketones or esters, and aromatie and aliphatic hydrocarbons. The list includes naphtha, hexane, aeetone, methyl ethyl ketone, benzene, and toluene. 

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