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Superionic Disulfonic Acid Polymers

delete2025-03-20
delete0
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OA
AI
X
Xue Lang Gao
H
Hojun Lee
W
Woongsik Choi
Y
Yong‐Ho Shim
C
Chi, HM
M
Moon Jeong Park
DOI：10.1002/adfm.202501998delete
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摘要

摘要

En 中文
酸功能化聚合物在能量转换系统中受到了广泛关注。磺化芳香聚合物已被广泛研究用于能量转换系统；然而，副反应的发生或取代位置的不确定性阻碍了其性能提升的进展。本研究提出了一种通过战略性设计精确排列酸基团的二磺酸聚合物，以开发超离子磺化聚合物的方法，该方法允许在分子水平上进行精细调节的分子相互作用。值得注意的是，合成的3,4-二磺酸基苯乙烯（PSdi34S），其磺酸基团靠近苯乙烯环的间位和对位，由于分子内氢键相互作用，表现出较低的电荷状态、显著降低的酸性和亲水特性。当PSdi34S掺杂离子液体时，这些相互作用使离子弛豫与聚合物弛豫解耦，这与在其他磺酸基苯乙烯类似物中观察到的离子电导率和机械强度之间的强权衡关系相反。PSdi34S电解质表现出超离子传导行为，室温电导率为1.2 mS cm⁻¹，剪切模量为52 MPa（计算杨氏模量为156 MPa）。获得具有优异电解质性能的二磺酸聚合物的可控聚合路线，为广泛的电化学应用提供了巨大前景。
Keyword:
acid-functionalized polymers
controlled polymerization
molecular interactions
solid-state electrolytes
superionic polymers
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期刊

Advanced Functional Materials 封面图
Advanced Functional Materials
IF:
19
论文数:
3.5W
被引数:
32.1W

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