History of Acrylic. Formation of acrylonitrile. Chemistry of acrylics. The monomer is acrylonitrile. Another name for acrylonitrile is vinyl cyanide. The polymer is (PAN) POLYACRYLONITRILE. They go under addition process. Acrylic Processing.
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Ethylene--Air Oxidation--> Ethylene oxide + HCN--> Ethylene cyanahydrin--Dehydration at 300 °C (catalyst)--> AcrylonitrileIn a continuous polymerisation process, 95% acrylonitrile and 6% methyl acrylate , 0.25% aqueous solution of K2S2O8, 0.50 % Na2S2O5 solution and 2N sulphuric acid are fed into the reaction vessel at 52°C under nitrogen atmosphere giving a slurry with 67% polymer. The slurry is continuously withdrawn, filtered and washed till it is free from salts and dried.
Vinyl acetate (opens up structure)
Acrylic acid ( provides dye sites)