含全氟磺酰亚胺酸的碳氟-碳氢杂化嵌段共聚物的合成与性能
Synthesis and Properties of Fluorocarbon-Hydrocarbon Hybrid Block Copolymers with Perfluorosulfonimide Acid.
作者信息
Hoshikawa Naohiro, Shinohara Akihiro, Hosokawa Yoichi, Hasegawa Naoki, Kawasumi Masaya
机构信息
Toyota Central R&D Laboratories, Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan.
出版信息
ACS Omega. 2020 Oct 19;5(43):27766-27773. doi: 10.1021/acsomega.0c01972. eCollection 2020 Nov 3.
Novel fluorocarbon-hydrocarbon hybrid block copolymer electrolytes were synthesized. The block copolymer electrolytes consist of poly(perfluoropropyl sulfonimide) (PC3SI) as a perfluorinated hydrophilic segment and poly(ether ether sulfone) as a hydrocarbon hydrophobic segment. The sulfonimide group of poly(perfluoropropyl sulfonimide) has superacidity, very low equivalent weight (EW = 293 g/equiv), and a proton conductivity of 1.2 × 10 S/cm under dry conditions and 25 °C, although soluble in water. The proton conductivity of the block copolymer was 1.7 × 10 S/cm at 20% relative humidity and 25 °C, which is three times as high as that of Nafion 112.
合成了新型氟碳-碳氢杂化嵌段共聚物电解质。该嵌段共聚物电解质由作为全氟亲水链段的聚（全氟丙基磺酰亚胺）（PC3SI）和作为碳氢疏水链段的聚（醚醚砜）组成。聚（全氟丙基磺酰亚胺）的磺酰亚胺基团具有超强酸性、极低的当量重量（EW = 293 g/equiv），并且在干燥条件下和25℃时质子传导率为1.2×10 S/cm，尽管可溶于水。该嵌段共聚物在20%相对湿度和25℃时的质子传导率为1.7×10 S/cm，是Nafion 112的三倍。
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