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Densely sulfonated fluorinated PAEs

Scheme 2.40 Structure of densely sulfonated fluorinated PAEs containing phenylene ether units. Taken from Ref. [173]. Scheme 2.40 Structure of densely sulfonated fluorinated PAEs containing phenylene ether units. Taken from Ref. [173].
Guiver et al. [179] synthesized comb-shaped densely sulfonated fluorinated PAEs with four sulfonic acid groups S4-PAES-xx (where xx = 30, 40, and 50) as grafted side chains (Scheme 2.46). The sulfonated copolymer S4-PAES-40 exhibited high proton conductivity of 96mS/cm, comparable to Nafion (125mS/cm) at 80 °C. The methanol permeability value of S4-PAES-40 was 3.40x lO cm /s, which was several times lower than Nafion 117 (1.55x 10 cm2/s). [Pg.81]

See other pages where Densely sulfonated fluorinated PAEs is mentioned: [Pg.72]    [Pg.73]    [Pg.78]    [Pg.87]    [Pg.72]    [Pg.73]    [Pg.78]    [Pg.87]   


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