Polyether copolymer and crosslinked solid polymer electrolyte
AssigneeDaiso Co., Ltd.
InventorsKatsuhito Miura, Masanori Yanagida, Hiroki Higobashi, Seiji Nakamura
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Abstract
A polyether copolymer having a weight-average molecular weight of 10.sup.4 to 10.sup.7, comprising 5 to 40% by mol of a repeating unit derived from epichlorohydrin, 95 to 60% by mol of a repeating unit derived from ethylene oxide, and 0.001 to 15% by mol of a crosslinkable repeating unit derived from a reactive oxirane compound, gives a provide a crosslinked solid polymer electrolyte which is superior in processability, moldability, mechanical strength, flexibility and heat resistance, and has markedly improved ionic conductivity.
Claims28
A polyether copolymer having a weight-average molecular weight of 10.sup.4 to 10.sup.7, comprising:
- (A) 4 to 40% by mol of a repeating unit derived from a monomer represented by the formula (I):
- ##STR18## (B) 95 to 59% by mol of a repeating unit derived from a monomer represented by the formula (II):
- ##STR19## and (C) 0.001 to 15% by mol of a repeating unit derived from a monomer represented by the formula (III-1) or (III-2):
- ##STR20## wherein R.sup.1 and R.sup.2 represent a substituent containing an ethylenically unsaturated group, a substituent containing a reactive silicon group, or a substituent containing an epoxy group at the end, which is represented by the formula (IV):
- ##STR21## wherein R.sup.3 is a divalent organic residue comprising at least one atom selected from carbon, oxygen and hydrogen atoms.
Dependencies are inferred from the claim text.