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The monomer, 2-(perfluorohexylmethyl)butan-1,4-diamine (TFD), was prepared from itaconic acid dimethyl ester via the addition of perfluorohexyl iodide followed by the gradual transformation of ester groups into amino groups. The polymerization of bisphenol-A diphthalic anhydride (BAPA) with TFD led to hydrophobic fluorinated polyetherimide (FPEI) with R F =C 6 F 13 side...
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