Synthesis and properties of phthalydecontaining phenolformaldehyde novolacs
Upon interaction of formaldehyde with phthalydecontaining phenols and their mixtures with phenol in acide media new phthalidecontaining gomo- and coolygophenolformaldehyde novolacs have been prepared. The crosslinked gomo- and copolymers have been prepared also. Their properties have been studied.