A bifunctional phenylene ether oligomer containing monophenylene and
biphenylene moieties can be rendered thermosetting by reacting the
terminal phenolic hydroxyl groups with a) a cyanogen halide to introduce
terminal cyanate groups, b) a halogenated glycidyl to form terminal epoxy
groups, or c) an allyl halide to produce allylic terminal groups. The
epoxy-terminated phenylene ether oligomer can be further reacted acrylic
and/or methacrylic acid to yield an epoxy di(meth)acrylate which can be
further modified with a carboxylic acid or anhydride to obtain and
acid-modified epoxy di(meth)acrylate.