2022
DOI: 10.1021/acsmacrolett.2c00164
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2,6-Azulene-based Homopolymers: Design, Synthesis, and Application in Proton Exchange Membrane Fuel Cells

Abstract: Azulene-based homopolymers are of great interest from the point view of chemistry and material science. Herein, by means of Friedel–Crafts acylation to introduce solubilizing chains on the 1-position of azulene, we designed and synthesized two examples of 2,6-azulene-based homopolymers RP­(Az-AC16) and P­(Az-AC16). The arrangement of 2,6-azulene units is irregular for RP­(Az-AC16), while P­(Az-AC16) has head-to-head/tail-to-tail arranged 2,6-azulene units. Proton-responsive studies demonstrate that RP­(Az-AC16… Show more

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Cited by 12 publications
(26 citation statements)
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“…Azulene-based polymers are promising candidates for electrochromic devices, , thermoelectrics, and electrolyte membranes ,, due to their proton-responsiveness. We evaluated the stimuli-responsiveness of PAzE-1 and PAzE-2 to trifluoroacetic acid (TFA) by UV–vis absorption spectroscopy.…”
Section: Resultsmentioning
confidence: 99%
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“…Azulene-based polymers are promising candidates for electrochromic devices, , thermoelectrics, and electrolyte membranes ,, due to their proton-responsiveness. We evaluated the stimuli-responsiveness of PAzE-1 and PAzE-2 to trifluoroacetic acid (TFA) by UV–vis absorption spectroscopy.…”
Section: Resultsmentioning
confidence: 99%
“…24,26 Recently, we realized the first solution synthesis of 2,6-polyazulenes and disclosed the impact of azulene orientations on proton conductivity of Nafion/2,6polyazulene composite membranes. 25 2,6-Azulene units in these reported polymers are oriented either irregularly or in head-to-head/tail-to-tail arrangement. 24−28 However, the conjugated polymers in which 2,6-azulene units are oriented in the same direction are still lacking due to synthetic challenges.…”
Section: ■ Introductionmentioning
confidence: 85%
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