Role of complex formation during the homo- and copolymerization of methacrylonitrile and acrylic acid in dimethyl sulphoxide-water solutions

Bajoras, G.; Gusakova, G. V.; Makushka, R.Yu.; Roganova, Z.A.; Smolyanskii, A. L.

doi:10.1016/0032-3950(83)90287-3

Cited by 4 publications

(1 citation statement)

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“…A more detailed analysis of the changes of the activity of unsaturated carboxylic acids in DMSO-H 2 0 solutions is presented in an example of copolymerization of AA, MAA, lA with AN, and MAN. It is known 9 that from the point of view of complexation through the H-bonds, the nitriles in the above media can be considered as inert components. Figures 7 and 8 show the changes in the initial rate of copolymerization ( VP) of MAA or lA with AN and MAN, depending on the mixed solvent.…”

Section: Discussion and Resultsmentioning

confidence: 99%

Peculiarities of Radical Homo- and Copolymerization of Acrylic, Methacrylic and Itaconic Acids in Complexing Solutions

Bajoras

Makuška

1986

Polym J

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Using the method of IR spectroscopy a study was made of complexation in the systems of acrylic, methacrylic and itaconic acids-dimethyl sulphoxide-water. Quantitative assessment was done on the number of acid molecules entering the H-bonds with DMSO using different amounts of water in the systems. Calculations were performed on the parameters of electron structure of itaconic acid, establishing higher acidity of the oc-carboxylic group. Reactivity of methacrylic acid in different complexes was assessed according to the redistribution of electron density in monomer molecules and in acid radicals during complexation. Copolymerization of acrylic, methacrylic and itaconic acids with acrylo-and methacrylonitriles in solutions of dimethyl sulphoxide-water was investigated as well. Peculiarities and differences of copolymerization of itaconic acid and monocarboxylic acids in binary solvents are thoroughly discussed here.

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Section: Discussion and Resultsmentioning

confidence: 99%