68039-32-7Relevant academic research and scientific papers
PMR-, IR-, AND UV-SPECTROSCOPIC STUDIES OF PRODUCTS OF REACTION OF DICYANDIAMIDE WITH FORMALDEHYDE. METHYLOL AND METHYLENE ETHER DERIVATIVES.
Trub,Boitsov,Mushkin
, p. 281 - 285 (2007/10/02)
Amido- and amino-formaldehyde resins comprise an important class of polymers. The least investigated are the dicyandiamide-formaldehyde resins (DFR), whose use is promising for the preparation of hydrophobic, fireproof and other polymers. From the study of the spectra of DFR, certain conclusions can be made on their composition. Facts show that the polymerization of DFR proceeds mainly with the formation of methylene-ether bridges, and the methyl groups remain as the terminal groups. This is indicated by the high content of oxygen in the polymer - 26. 6% (determined in a CHN-3 analyzer).
REACTION OF CYANOGUANIDINE WITH FORMALDEHYDE. I. HYDROXYMETHYLATION AND METHOXYMETHYLATION OF CYANOGUANIDINE.
Takimoto,Ebisuno,Shiba
, p. 3319 - 3322 (2007/10/02)
In order to examine the reactivity of cyanoguanidine (CG) with formaldehyde, CG was first hydroxymethylated, then methoxylated, and finally exhaustively hydroxymethylated with a large excess of formaldehyde. 4-Cyanoimino-3-methoxymethylperhydro-1,3,5-oxadiazine was isolated as a major reaction product of 1,3-bis(methoxymethyl)-2-cyanoguanidine with formaldehyde. This product is an adduct of 3 mol of formaldehyde per mole of CG and a six-membered cyclic ether. Minor products were further methoxylated and ,5-bis(methoxymethyl)-4-methoxymethyl(carbmoylimino)perhydro-1,3,5-o xadiazine was isolated. This is an adduct of 2 mol of formaldehyde to the amidinated product derived from the major product by the hydration of the cyano group.
