Synthesis and characterization of a macromonomer crosslinker

A macromonomer crosslinker was synthesized by reacting an hydroxy-terminate d ethylene-butylene diol copolymer with an excess of acrylic acid in toluen e. H-1-, C-13-, and attached proton test (APT) NMR. Fourier transform IR, a nd gel permeation chromatography were used to characterize the macromonomer crosslinker. Its dilute solution behavior was also compared with the base diol, The addition of the ester moiety to the copolymer backbone did not in volve any other side reactions, as evidenced by the similarities in the str uctures of the macromonomer crosslinker and the diol. (C) 2000 John Wiley & Sons, Inc.