Synthesis of hyperbranched poly(amine-ester) and study of Its UV-curing reaction

Section 1 of the full paper explains the experimental method. Section 2 presents the experimental results and their discussion. Their core is: ″we first synthesize N, N-diethylol-3-amine methylpropionate by using the Michael addition of methyl acrylate and diethanolamine; then we use the 1, 1, 1-trimethylolpropane as a core molecule and N, N-diethylol-3-amine methylpropionate as an AB₂ monomer to prepare with the one-step method a series of hyperbranched poly(amine-ester)s, which are studied by using the IR, DSC, TGA methods and other chemical analytical methods. The modification of hyperbranched poly(amine-ester)s with glycidyl methacrylate and methyltetrahydro phthalic anhydride show fast photochemical cross linking with the photoinitiator added.″ Same as above, we also study the modifying mechanism by the methods of IR, DSC and other chemical analytical methods. The experimental results show preliminarily that: the hydroxyl groups of hyperbranched poly(amine-ester) first react with methyltetrahydro phthalic anhydride and produce carboxyl groups, the carboxyl groups then react with the epoxy groups of glycidyl methacrylate and light-cured hyperbranched poly(amine-ester)s are prepared.