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M. Maciejewski, Z. Sęktas, M. Bukowska


Synthesis of polyguanamines from cyanoguanidine-formaldehyde resins


Polimery 1980, No 10, 358


DOI: dx.doi.org/10.14314/polimery.1980.358

Summary

The reaction of cyanoguanidine-formaldehyde and cyano-guanidine-melamine-formaldehyde resins with nitrile groups and with the formation of s-triazine rings has been studied. The work aimed at checking the possibility of preparing polyguanamines by this route. These reactions have been carried out either with cyanoethylated resins or with resins in mixtures with adiponitrile. The cyanoethylated cyanoguanidine-formaldehyde resins are incapable of the s-triazine cyclization. This reaction is, however, possible in the case of the products of condensation of hydroxymethylcyanoguanidine with an additional amount of cyanoguanidine or melamine. The possibility of the s-triazine cyclization reaction is attributed by the Authors to the presence qf at least one unsubstituted –NH2 group in the cyanoguanidine rest of the resin.


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