Synthesis, characterization and electrochemical properties of poly(methyl methacrylate)-grafted-poly(vinylidene fluoride-hexafluoropropylene) gel electrolytes

被引：34
作者：
Liu, Y [1 ]
Lee, JY [1 ]
Hong, L [1 ]
机构：
[1] Natl Univ Singapore, Dept Environm Chem & Engn, Singapore 119260, Singapore
来源：
SOLID STATE IONICS | 2002年 / 150卷 / 3-4期
关键词：
P(VDF-HFP); PMMA; gel electrolytes; transference number and interfacial stability;
D O I：
10.1016/S0167-2738(02)00523-4
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A new comb-like copolymer, poly(vinylidene fluoride-co-hexafluoropropylene)-g-poly(methyl methacrylate), or [P(VDF-HFP)-g-PMMA], was successfully synthesized through grafting in situ formed PMMA to the P(VDF-HFP) backbone. The composition of the P(VDF-HFP)-g-PMMA copolymer was characterized by Fourier transform infrared spectroscopy (FTIR), thermal gravimetric analysis (TGA) and elemental analysis. X-Ray diffractometry (XRD) and differential scanning calorimetry (DSC) were used to examine the reduction in crystallinity of P(VDF-HFP) due to the anchoring of PMMA segments on it. Gel electrolyte membranes based on the resulting copolymer were prepared by. the Bellcore process. The ionic conductivity of Li+ across the membranes and the related transference number were measured. A study of the interfacial stability between Li electrode and the P(VDF-HFP)-g-PMMA get electrolyte was also conducted to evaluate the suitability of the P(VDF-HFP)-g-PMMA copolymer in rechargeable lithium and lithium-ion battery applications. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：317 / 326
页数：10
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