MALEIC ANHYDRIDE ADDITION TO LACQUER ETHINOL
2011
Khachatryan, L.A. | Ghazaryan, S.G. | Grigoryan, Z.G. | Tonoyan, V.D. | Grigoryan, G.S. | Malkhasyan, A.Ts.
The reaction of maleic anhydride addition to ionol-stabilized divinyl-acetylene polymers in a commercial lacquer ethynol product over a temperature range of 80–190°C in hydrocarbon and aprotic polar solvents has been studied. By IR spectroscopy, gas-liquid chromatography methods and chemical analysis of polymer double bonds and anhydride groups has been shown that maximum degree of addition is about 7 mol%. The obtained results have shown that maleic anhydride adds to divinylacetylene polymers at the end vinylacetylene groups of a molecule, probably by a diene synthesis reaction.
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