Heterogeneous ion exchange membranes based on thermoplastic polyurethane (TPU): effect of PSS/DVB resin on morphology and electrodialysis

Abstract

Membrane morphology and electrochemical properties depend on PSS/DVB resin content and swelling in addition to interaction with TPU.

Novel polyaniline–polyethersulfone nanofiltration membranes: effect of in situ polymerization time on structure and desalination performance

“…The effects of in situ polymerization of aniline and its conditions on the deposition extent of PANI on various base membranes and their electrochemical and electrodialytic performance have been discussed using various substrates including poly(vinylchloride-co-vinylacetate), polyvinylchloride, thermoplastic polyurethane, and cellulose acetate. [41][42][43][44][45] The present research employed in situ polymerization to deposit polyaniline as a thin lm on base polyethersulfone nanoltration membranes. The synthesis of PANI layered membrane using PES nanoltration substrate through in situ oxidative polymerization has been reported rst time in literature for nanoltration desalination applications.…”

“…The effects of in situ polymerization of aniline and its conditions on the deposition extent of PANI on various base membranes and their electrochemical and electrodialytic performance have been discussed using various substrates including poly(vinylchloride- co -vinylacetate), polyvinylchloride, thermoplastic polyurethane, and cellulose acetate. 41–45…”

Enhancement of Power Generation and Organic Removal in Double Anode Chamber Designed Dual-Chamber Microbial Fuel Cell (DAC-DCMFC)

“…Electrodes consisted of GNPs (CAS# 9002-84-0) coated 30 mesh SSM as the anode of both anode chambers, and the big difference was cathode material that consisted of GNPs: PU 1:1 volume solution ratio-coated cathode at the code 1A, and GNPs-PTFE (CAS# 9002-84-0) 60% coated cathode at the code 2A. In addition, synthesized PU was water-based polyurethane [53] with a similar function to polytetrafluoroethylene (PTFE) [44,54,55] as a waterproofing material and increasing the oxygen reduction reaction (ORR) on the surface of the cathode material. The wiring system, called closed-circuit voltage (CCV) [56,57], connected the anode-equipped 100 Ω of resistor onto the data logger and cathode in a line.…”

Donnan Membrane Process for the Selective Recovery and Removal of Target Metal Ions—A Mini Review

“…Homogeneous IEMs have higher conductivity, perm selectivity and a more balanced distribution of functional sites, but they are more costly to produce and have more complex manufacturing phases. Comparatively, heterogeneous IEMs have better chemical stability and mechanical properties over the homogenous ones [ 55 , 56 ]. However, the low electrochemical properties of the heterogeneous IEMs are associated with ionic mobilization pathways, leakage of co-ions in the solution phase and the availability of inert fractions [ 52 ].…”