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Preparation and characterization of novel hybrid thermoplastic poly(ether urethane)/poly(vinylidene fluoride) elastomers, and their application as solid polymer electrolytes
Author(s) -
Lin Ye,
Qian Qin,
ZengGuo Feng,
XiaoWen Zhang,
Ying Bai,
Feng Wu
Publication year - 2007
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.2188
Subject(s) - materials science , differential scanning calorimetry , thermoplastic elastomer , polymer , polymer chemistry , thermogravimetric analysis , elastomer , lithium (medication) , fourier transform infrared spectroscopy , ether , electrolyte , ionic conductivity , lithium perchlorate , chemical engineering , composite material , copolymer , organic chemistry , chemistry , medicine , physics , electrode , engineering , thermodynamics , endocrinology
A comb‐like polyether, poly(3‐2‐[2‐(2‐methoxyethoxy)ethoxy]ethoxymethyl‐3′‐methyloxetane) (PMEOX), was reacted with hexamethylene diisocyanate and extended with butanediol in a one‐pot procedure to give novel thermoplastic elastomeric poly(ether urethane)s (TPEUs). The corresponding hybrid solid polymer electrolytes were fabricated through doping a mixture of TPEU and poly(vinylidene fluoride) with three kinds of lithium salts, LiClO 4 , LiBF 4 and lithium trifluoromethanesulfonimide (LiTFSI), and were characterized using differential scanning calorimetry, thermogravimetric analysis and Fourier transform infrared spectroscopy. The ionic conductivity of the resulting polymer electrolytes was then assessed by means of AC impedance measurements, which reached 2.1 × 10 −4 S cm −1 at 30 °C and 1.7 × 10 −3 S cm −1 at 80 °C when LiTFSI was added at a ratio of O:Li = 20. These values can be further increased to 3.5 × 10 −4 S cm −1 at 30 °C and 2.2 × 10 −3 S cm −1 at 80 °C by introducing nanosized SiO 2 particles into the polymer electrolytes. Copyright © 2006 Society of Chemical Industry