Synthesis and characterization of hyperbranched polyurethane acrylates used as UV curable oligomers for coatings

A series of UV curable hyperbranched polyurethane acrylates (HUAs) were synthesized by modifying the hyperbranched polyester endcappedwith hydroxyl groups (HBPE-OH) using urethane acrylate prepared from toluene diisocyanate and 2-hydroxylethyl acrylate, andcharacterized by infrared spectroscopy and nuclear magnetic resonance spectroscopy. These materials, whic..