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Chemical Modification of Polyglycidyl Phenol-Formaldehyde Oligomers by Methacrylic Acid

Michael Bratychak, Galyna Strap, Olena Shyshchak and Olena Astakhova
Affiliation: 
Lviv Polytechnic National University, 12, St. Bandera str., 79013 Lviv, Ukraine; mbratych@polynet.lviv.ua
DOI: 
https://doi.org/10.23939/chcht08.02.157
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Keywords:

Abstract: 
A new oligomer with unsaturated double bonds in the side chains has been synthesized via chemical modification of polyglycidyl phenol-formaldehyde oligomers (PGPFO) by methacrylic acid (MA) using benzyltriethylammonium chloride as a catalyst. The effect of temperature and reaction time on the reaction proceeded between PGPFO and MA has been studied. The effective rate constants and activation energy of the reaction have been calculated. The structure of the synthesized oligomer has been confirmed by chemical and IR-spectroscopic analyses. The cross-linking of epoxy-oligomeric mixtures based on ED-20 epoxy resin, peroxy derivative of epoxy resin, TGM-3 oligoesteracrylate and synthesized oligomer has been examined using polyethylenepolyamine as a hardener.
References: 

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