1 and related polymers 2,3 are a very important class of common organic polymers with significant material applications, 3,4 such as thermosetting resins, adhesives, photoresists, and polymer composites. These materials show good thermal stability and mechanical properties. It is suggested that the origin of these significant characteristics is the rigid-rodlike poly(phenylenemethylene) backbone. 1,2 From this viewpoint, we have previously discussed the design of a new high performance aromatic polymer.2 Specifically, a new class of phenolic resins [poly(phenylenemethylene)] was prepared from alkoxylated phenols, such as anisole, phenethol, and diphenyl ether via a method similar to the acid-catalyzed phenol-formaldehyde condensation. The obtained polymers show good solubility in organic solvents and are more stable to heat and oxidation than phenolic novolacs. It is very important to extend the chemistry of the poly(phenylenemethylene)s to electron-rich aromatic compounds.Previously, the xylene and related resins were prepared via a bulk addition-condensation reaction.