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TEMPO‐Substituted Poly(ethylene sulfide) for Solid‐State Electro‐Chemical Charge Storage
Author(s) -
HatakeyamaSato Kan,
Wakamatsu Hisato,
Matsumoto Satoshi,
Sadakuni Karin,
Matsuoka Koji,
Nagatsuka Tomomi,
Oyaizu Kenichi
Publication year - 2021
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.202000607
Subject(s) - ethylene oxide , polymer chemistry , polymer , sulfide , ionic conductivity , materials science , polymerization , ethylene , lithium (medication) , monomer , ionic bonding , solid state , chemical engineering , chemistry , ion , organic chemistry , copolymer , composite material , medicine , catalysis , electrode , electrolyte , engineering , metallurgy , endocrinology
A poly(ethylene sulfide) backbone is introduced as the main chain of a radical polymer. Anionic ring‐opening polymerization of an episulfide monomer substituted with 2,2,6,6tetramethylpiperidin1oxyl (TEMPO), a robust nitroxide radical, yields the corresponding polythioether. Compared to the traditional poly(ethylene oxide) backbone, the new polymer shows a lower glass transition temperature (−10 °C), and about threefold higher solid‐state ionic conductivity. The polythioether is also shown to improve the charge/discharge properties of a cathode in solid‐state lithium‐ion batteries.