A novel polymer having both a hydrophilic phosphonium site and a hydrophobic perfluoro-group was designed and successfully prepared by palladium-catalyzed P–C coupling reaction. In the polymer, hydrophilic and hydrophobic segments were arranged alternatively on the backbone. Anion exchange of bromide for ditriflamide polyelectrolyte tremendously improved thermal stability (5% degradation by TGA) from 234 °C to 460 °C and chemical stability under alkaline condition. Therefore, these polyelectrolytes were tested for ion conductivity and as electrode components in battery and in fuel cell applications. The film morphology was influenced by structural variation and has been investigated by AFM, SEM and critical surface energy were measured related to both main chain and counterion

Hydrophilic-hydrophobic hydrid polymer involving perfluoro- with tetraarylphosphonium moieties: Synthesis, film morphology and electrochemical properties

253rd National Meeting (2017)

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