PREPARATION AND CHARACTERIZATION OF SULFONATED POLY(DIMETHYL PHENYLENE OXIDE)
磺化聚苯醚的制备与表征

ulfonated poly(dimethyl phenylene oxide)(SPPO) has been prepared through the reaction of PPO with fuming sulfuric acid in the media of chloroform.The effect of the amount of sulfuric acid on sulfonation degree has also been discussed. The structure of SPPO was characterized by using FTIR, 1HNMR, 13CNMR and other analysis methods. Conductometric titration, Elemental analysis and 1H-NMR were used to determine the sulfonation degree of SPPO, i. e., the percentage of sulfonated units.