Materials Chemistry 2019: Nano-scale membranes based on polystyrene sulfonic acid blends - Thieo E Hogen Esch - University of Southern California

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Adaptable, robust, colorless and obvious poly vinylidenefluoride-olystyrenesulfonic acid (PVDFPSSA) proton exchange membranes1-3 had been synthesized with the useful resource of first mixing DMF solutions of PVDF and tetrabutylammonium poly styrene sulfonate (PTBASS) terpolymer having smaller (<20%) mole fractions of styrene (S) and four-chloromethyl styrene (CMS). The tetrabutylammonium styrene (BASS) sulfonate precursor monomer modified into synthesized through easy ion alternate of sodium styrene sulfonate and tetrabutylammonium-chloride or bromide. The PBASS terpolymer precursor becomes synthesized via a conventional radical copolymerization of BASS, styrene and CMS. The PVDF-PBASS blends are original via dissolution of the 2 polymers in DMF, observed with the aid of evaporation and thermal bypass-linking thru annealing at approximately 170C. The EAS type crosslinking appears to contain the formation of TBA benzyl sulfonates that may straight away benzilate the S and CMS devices of the terpolymer.