  Polymeric membranes, including Polysulfone (PSf) membranes, are routinely
used for water treatment. To enhance water permeation of above membranes, it is
common to synthesize polymeric membranes with carbon nanotubes (CNTs) embedded
in them. It is seen that water permeability of membranes having vertically
aligned CNTs is higher, as compared to those where CNTs are not aligned. It is
of interest to examine if the dielectric constant of a CNT based nanocomposite
membrane is sensitive to alignment of CNTs or not. This paper reports
dielectric properties of PSf-MWCNT membranes, both, for aligned and unaligned
MWCNTs. Multi Walled Carbon Nanotubes (MWCNTs) based polysulfone membranes were
synthesized using standard methods. MWCNTs in above membranes were aligned by
casting the membrane in presence of magnetic field. The present paper, for the
first time, shows that the above result is valid for membranes also.
