Journal
POLYMER
Volume 42, Issue 2, Pages 359-373Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0032-3861(00)00384-0
Keywords
sulfonated polyimides; polycondensation; ion-exchange membranes
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Series of sequenced sulfonated naphthalenic polyimides with improved solubility were prepared by polycondensation in m-cresol using aromatic diamines containing phenylether bonds and/or bulky groups. Sulfonated polyimides were characterized by NMR and IR spectroscopies. Membranes were prepared by solution casting method and characterized by determining the ion-exchange capacity, water swelling, proton conductivity whereas the morphology of polymer membranes was studied by small angle neutron scattering. (C) 2000 Elsevier Science Ltd. All rights reserved.
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