Cationic polyelectrolytes. III. Nitrile-group reaction of macromolecular compounds with N,N-dialkylaminoalkylamines |
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Authors: | Stela Dr gan,V. B rboiu,I. Petrariu,M. Dima |
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Affiliation: | Stela Drăgan,V. Bărboiu,I. Petrariu,M. Dima |
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Abstract: | The chemical reaction in aqueous medium of polyacrylonitrile and acrylonitrile–vinyl acetate co-polymer using asymmetrical diamines of H2N? (CH2)m? NR2 (m = 2,3) structure was studied. It was found that the nitrile group is modified to an dialkylaminoalkylacrylamide group; also determined were the reaction conditions required to obtain the highest degree of chemical transformation of the nitrile groups. All modified compounds were characterized by analytical spectroscopy (IR and 1H NMR) and by rheological methods. It was also established that glutaronitrile can be used as a low-molecular-weight model to study the chemical transformation of nitrile groups in polyacrylonitrile and related polymers. |
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