Abstract
An approximately 100% branched hyperbranched polymer was successfully prepared using 2-(4-phenoxyphenoxy)fluorenone as a monomer in an acidic medium. The kinetics of the model reaction between 9-fluorenone and anisole was investigated. The reaction obeyed the second-order kinetics, indicating that the first reaction, i.e., the formation of the intermediate from 9-fluorenone and anisole, is considerably slower than the second one, i.e., the reaction of the intermediate with anisole. Based on this finding, a new monomer expected to produce a 100% branched hyperbranched polymer, 2-(4-phenoxyphenoxy)fluorenone, was designed and prepared. The polymer thus obtained was characterized by FT/IR and 13C NMR spectroscopy, which confirmed that the polymer was an almost 100% branched hyperbranched polymer.
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Kono, S., Sinananwanich, W., Shibasaki, Y. et al. Synthesis of Hyperbranched Polymer with Degree of Branching of Approximately 100% by Polycondensation of 2-(4-Phenoxyphenoxy)fluorenone. Polym J 39, 1150–1156 (2007). https://doi.org/10.1295/polymj.PJ2007090
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DOI: https://doi.org/10.1295/polymj.PJ2007090
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