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Cationic Polymerization of Poly(vinyl ether) Bearing a TEMPO Radical: A New Cathode‐Active Material for Organic Radical Batteries
Author(s) -
Suguro Masahiro,
Iwasa Shigeyuki,
Kusachi Yuki,
Morioka Yukiko,
Nakahara Kentaro
Publication year - 2007
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.200700300
Subject(s) - cationic polymerization , moiety , monomer , materials science , polymer chemistry , polymerization , vinyl ether , radical polymerization , cathode , chemistry , polymer , composite material , organic chemistry
Abstract PTVE was synthesized as a new active material for organic radical batteries. Cationic polymerization of a monomer bearing a TEMPO radical moiety took place. The spin concentration of PTVE was estimated to be 2.75 × 10 21 spins · g −1 (100% spin per repeating unit). The PTVE is extremely stable; there is no decrease in spin concentration when storing PTVE samples for more than a year under aerobic conditions at room temperature. The redox potential of PTVE is 3.55 V (vs. Li/Li + ). A coin‐type cell using a PTVE/VGCF composite electrode was also fabricated, and then performed charge/discharge measurements. The discharge capacity of PTVE is 114 mAh · g −1 (84% of the theoretical value).