摘要
采用六氯环三磷腈高温开环聚合方法制备了聚二氯磷腈,然后采用醇钠法,取代聚二氯磷腈的氯,制备了聚二(二乙二醇单甲醚)磷腈(MEEP),探索出了较佳的合成工艺,采用FT-IR、31P-NMR、13C-NMR、质谱对其进行了结构表征和分析。结果表明,所制备的磷腈聚合物确实为MEEP。采用自制的MEEP,与三氟甲基磺酸锂(LiCF3SO3)盐进行复配,制备了锂离子电池用聚合物固体电解质,对其热稳定性、导电性进行了测试,其开始分解温度在200℃以上,室温电导率达到了1.187×10-4S/cm(25℃),具有较佳的导电性和热稳定性,可用于锂离子电池的电解质。
Polydichlorophosphazene was synthesized from hexachlorocyclotriphosphazene by high-temperature decyclopolymerization,and poly（2-（2-methoxyethoxy）ethanol phosphazene）（MEEP） was synthesized by alcohol-Na＋ reaction. The optimal synthesis parameters were obtained,and the structure of MEEP was analyzed by FT-IR,31P -NMR,13C-NMR and 1H-NMR. The results show that the product synthesized is MEEP compound. Then polyphosphazene electrolyte was prepared by mixing MEEP with LiCF3SO3 and its heat stability and ionic conductivity were determined. The results indicate that the electrolyte prepared has high thermo-decomposed temperature,its initial decomposing temperature is more than 200 ℃ and its room-temperature conductivity is up to 1.187×10-4 S/cm（25 ℃）.
出处
《石油化工高等学校学报》
CAS
2010年第1期1-5,共5页
Journal of Petrochemical Universities
基金
广东省教育部产学研结合项目资助(2007A-090302051)
北京市教育委员会科研基地建设项目资助(2009)
北京市大学生研究训练项目(URT)资助(08011082003)
北京石油化工学院学术创新团队资助
关键词
聚二氯磷腈
聚二(二乙二醇单甲醚)磷腈
锂离子电池电解质
Polydichlorophosphazene
Poly（2-（2-methoxyethoxy）ethanol phosphazene） （MEEP）
Polymer electrolyte for lithium ion battery
