The crude products were worked up by following standard procedure with nearly no small molecule impurities as revealed 1 H-NMR analysis in DMSO-d6 solvent. The solid was further dried to produce polymer 1A as light yellow solids (149 mg, 60% yield). in chemical yields arranging from 38% to 82%. Gel permeation chromatography (GPC) was used to determine the molecular weights of polymers and oligomers in the solution of THF. Unlike our previous 1,4-substituted aromatic bridge polymers, the present 1,3-substituted aromatic bridge products exhibit better solubility of THF making GPC analysis more convenient. Among these six cases, 1A afforded the highest Mn and Mw showing Mw of 9792 and Mn of 9427, respectively, However, cases 2A and 2C were generated as multilayer oligomers with layers numbers arranged from 7 to 9 based on the calculation of their Mn data. It is difficult to explain the differences in synthetic efficiencies because polymerization depends on many factors, such as electronic effect, stereo effect, solubility, and reactivity of co-monomers and polymeric products. Details of GPC and NMR data have been previously published .