@misc{maab_speekpolyimide_blends_2009, 
author={Maab, H., Schieda, M., Yave, W., Shishatskiy, S., Pereira Nunes, S.},
title={SPEEK/Polyimide Blends for Proton Conductive},
year={2009},
howpublished = {journal article},
doi = {https://doi.org/10.1002/fuce.200800121},
abstract = {A series of membranes, based on sulphonated poly(ether ether ketone) (SPEEK)/polyimide (PI) blends, was prepared at different casting conditions. They were characterised by SEM, FTIR, DMTA, DSC, TGA, water/methanol pervaporation and impedance spectroscopy. The membranes prepared at 130 °C from blends with 10, 20 and 30 wt.-% of PI are homogeneous, and the methanol permeabilities decreased from 28 × 10-10 kg m s-1 m-2 (plain SPEEK) to 7.21, 2.61 and 0.55 × 10-10 kg m s-1 m-2, respectively. This corresponds to a 4- to 57-fold methanol crossover reduction. With this improvement, by the introduction of PI, the power density of SPEEK-based membranes in DMFC tests could be greatly improved.},
note = {Online available at: \url{https://doi.org/10.1002/fuce.200800121} (DOI). Maab, H.; Schieda, M.; Yave, W.; Shishatskiy, S.; Pereira Nunes, S.: SPEEK/Polyimide Blends for Proton Conductive. Fuel Cells. 2009. vol. 9, no. 4, 401-409. DOI: 10.1002/fuce.200800121}}