Alkenylphenylglycidyl ether capped hydroxystyryl pyridines (pyrazines) and polymers thereof

A thermosettable product which comprises the reaction product of

• (A) at least one of
• (1) one or more pyridine compounds represented by the formula ##STR10## (2) one or more pyrazine compounds represented by the formula ##STR11## (3) a mixture of 1 and 2;
• with (B) a substituted aromatic aldehyde represented by the formula ##STR12## wherein each R is independently hydrogen, hydroxyl, methyl or ethyl;
• each R' is independently a hydroxyl or a ##STR13## group;
• each R" is independently hydrogen, methyl or ethyl;
• x has a value of 3;
• x' has a value of 2;
• y has a value of 1 or 2;
• y' has a value of 3 or 4;
• the sum of y and y' has a value of 5;
• and with the proviso that at least one of R or R' is a hydroxyl group to provide a hydroxyl functional precursor which is then reacted with
• (C) an alkenylphenylglycidyl ether having the formula ##STR14## wherein each R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is independently hydrogen or a hydrocarbyl group having from 1 to 3 carbon atoms;
• each X is independently hydrogen, a hydrocarbyl group having from 1 to 4 carbon atoms, chlorine, bromine, a phenyl group or a methoxy group;
• each Y is independently hydrogen or a hydrocarbyl group having from 1 to 4 carbon atoms and n and m are positive integers, and the sum of n plus m has a value of 4 whereby at least about one percent of the rings of the reaction product of (A) and (B) is etherified with said alkenylphenylglycidyl ether.