Highly Deliquescent Cationic Polyether with Imidazolium Halide Group

A highly deliquescent cationic polyether was synthesized through living anionic polymerization of epichlorohydrin followed by quaternization of the obtained poly(epichlorohydrin) by reacting with 1-methylimidazole. The formed poly(N-glycidyl-N′-methylimidazolium chloride) (poly(ECH-MeIm+Cl−)) absorb...

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Bibliographic Details
Published in:Chemistry letters 2017-01, Vol.46 (7), p.1033
Main Authors: Hayano, Shigetaka, Ohta, Keisuke, Hoang The Ban
Format: Article
Language:eng ; fre ; ger ; jpn
Subjects:
Anionic polymerization
Cationic polymerization
Epichlorohydrin
Hygroscopicity
Ion currents
Phase transitions
Polyepichlorohydrins
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Summary:A highly deliquescent cationic polyether was synthesized through living anionic polymerization of epichlorohydrin followed by quaternization of the obtained poly(epichlorohydrin) by reacting with 1-methylimidazole. The formed poly(N-glycidyl-N′-methylimidazolium chloride) (poly(ECH-MeIm+Cl−)) absorbed moisture in air immediately to change its appearance from solid to fluid, suggesting its deliquescent nature. The hydrated poly(ECH-MeIm+Cl−) possessed neither glass transition nor phase transition in between −60 and 60 °C. Ionic conductivity of the hydrated polymer was as high as 1.8 × 10−2 S cm−1 under rather humid conditions (23 °C, 80% RH; water uptake: 72 wt %).
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.170304