SYNTHESIS OF HYPERBRANCHED OLIGOMERS WITH ACTIVATED ARYL CHLORIDE ANDPHENOL TERMINAL GROUPS

We have carried out the synthesis of hyperbranched oligomers with acti vated aryl chloride and phenol terminal functionality from relatively high molecular weight monomers. The syntheses have the displacement of chlorides activated by sulfone groups using phenolate ions in common. In these methods, the phenolate ion can undergo self condensation to give aryl chloride-terminated or phenol-terminated hyperbranched oligo mers. The syntheses of the monomers and reactive oligomers are easily carried out and produce the products in high yield. The products were characterized by HPLC, MALDI-TOF-MS, NMR, and SEC.