New composite free standing films were fabricated by solution casting poly(diethyl, dipropyl)phosphazene, phosphoric acid and a naphthalenic sulfonated copolyimide. The proton conductivity data in dry environment obtained for these films allow to conclude that the presence of strong sulfonic acid proton donors and of phosphazene N proton acceptor sites is not sufficient to allow good conductivity in dry environment, and that the content of phosphoric acid appears the most critical factor for the proton mobility.
Proton conductivity of poly(dialkyl)phosphazenes-phosphoric acid composites at low humidity
DOTELLI, GIOVANNI;
2007-01-01
Abstract
New composite free standing films were fabricated by solution casting poly(diethyl, dipropyl)phosphazene, phosphoric acid and a naphthalenic sulfonated copolyimide. The proton conductivity data in dry environment obtained for these films allow to conclude that the presence of strong sulfonic acid proton donors and of phosphazene N proton acceptor sites is not sufficient to allow good conductivity in dry environment, and that the content of phosphoric acid appears the most critical factor for the proton mobility.File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
Proton conductivity of poly(dialkyl)phosphazenes phosphoric acid composites at low humidity.pdf
Accesso riservato
:
Altro materiale allegato
Dimensione
503.74 kB
Formato
Adobe PDF
|
503.74 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
