ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly
 

Conversion of technical mixtures of polyhydric phenols into resinous products. IV. The effect of melamine on the condensation of diphene and pyrocatechol residues with formaldehyde in the presence of an alkali as catalyst

J. Gašperík, K. Zvachová-Huppmanová, and J. Zvach

Slovak Technical University, Bratislava

 

Abstract: The temp. relation of condensation reactions at 85° of diphene and pyrocatechol residues with HCHO is described. Melamine in an amt. of > 1.0% based on the amt. of the polyphenol component acts as an accelerator for the condensation in the presence of alkalies; in an amt. <1.0%, it accelerates selectively the formation of poly(phenol alcs.).

Full paper in Portable Document Format: 167a516.pdf (in Slovak)

 

Chemical Papers 16 (7) 516–525 (1962)

Tuesday, May 21, 2024

IMPACT FACTOR 2021
2.146
SCImago Journal Rank 2021
0.365
SEARCH
Advanced
VOLUMES
European Symposium on Analytical Spectrometry ESAS 2022
© 2024 Chemical Papers