| Hyperbranched polymers have received more and more research interest from scientists because of the unique strutural characteristics, synthetic methods as well as application fields. In this paper, new aromatic AB2 type monomer benzoic acids were synthesized by a few steps from 3,5-dihydroxybenzoic acid. By polycondensation of AB2 type monomer benzoic acids, a hyperbranched aromatic polyamide polyesters were effectively prepared. The structure of the product was analyzed by IR,1HNMR and viscosity measurements. |
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