Chemical plasticization of cellulose triacetate

Novel proton-conducting polymer inclusion membranes

“…With DNSA, no film was obtained when CAP, CAB and CAH were used, while DNDSA containing membranes were fragile. These observations indicate that acetate substitution by propionate, butyrate and phatalate groups affects the compatibility of the supports with the ion carrier, i.e., changes in the flexibility of the macromolecules and in the structure of the polymer, resulting in the alteration of the regularity and decrease in intermolecular interactions, depend on the amount and type of polymer substitution [36]. When CTA was used as the polymeric matrix, well formed membranes were obtained disregarding the carrier added, while with PVC the membranes containing DNDSA showed a very inhomogeneous composition.…”