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Preparation and characterization of a semi‐interpenetrating network gel polymer electrolyte
Author(s) -
Li WeiLi,
Xu LiXing,
Luo Dan,
Yuan MingYong,
Yang Mujie
Publication year - 2007
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.26766
Subject(s) - materials science , differential scanning calorimetry , electrolyte , interpenetrating polymer network , polymer , ionic conductivity , prepolymer , dielectric spectroscopy , chemical engineering , thermal stability , polymer chemistry , cyclic voltammetry , polymerization , electrochemistry , composite material , electrode , chemistry , physics , polyurethane , engineering , thermodynamics
Poly(PEG200 maleate) was synthesized as a new type crosslinkable prepolymer and the semi‐interpenetrating polymer network (semi‐IPN) gel electrolytes were prepared by means of thermal polymerization. Their intrinsic properties were characterized by FTIR spectroscopy, differential scanning calorimetry (DSC), X‐ray diffractions (XRD), scanning electron microscopy, alternating current impedance (AC impedance), and linear sweep voltammetry. The prepared polymer hosts are transparent and have good mechanical properties. The results of DSC and XRD confirm that the prepared hosts are in amorphous state and they can hold enough liquid electrolytes, which is favorable for Li + ions to transport via both the absorbed liquid electrolyte and the gel of the entire systems. The semi‐IPN gel electrolytes exhibit high ionic conductivity on the order of 10 −3 S cm −1 . Their electrochemical stability up to +4.6 V against Li + /Li also makes them potential candidates for application as polymer electrolytes in devices. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2008