The synthesis of a hyperbranched star polymeric ionic liquid and its application in a polymer electrolyte

被引：45

作者：

Wang, Ailian ^{[1
]}

Xu, Hao ^{[1
]}

Liu, Xu ^{[1
]}

Gao, Rui ^{[2
]}

Wang, Shi ^{[1
]}

Zhou, Qian ^{[1
]}

Chen, Jie ^{[1
]}

Liu, Xiangfeng ^{[2
]}

Zhang, Liaoyun ^{[1
]}

机构：

[1] Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China

[2] Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China

来源：

POLYMER CHEMISTRY | 2017年 / 8卷 / 20期

基金：

中国国家自然科学基金;

关键词：

FRAGMENTATION CHAIN TRANSFER; FREE-RADICAL POLYMERIZATION; ANION-EXCHANGE MEMBRANES; LITHIUM BATTERIES; THERMAL-PROPERTIES; RAFT; SAFE;

D O I：

10.1039/c7py00499k

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

This research provides an effective approach to synthesize a hyperbranched star polymeric ionic liquid (HBPS-(PVIMBr)(x)) with a hyperbranched polystyrene core and poly(1-butyl-3-vinylimidazolium bromide) arms via a combination of atom transfer radical self-condensing vinyl polymerization (ATR-SCVP) and RAFT polymerization. The synthesis process ensures good structural controllability and consistency that all of the arms of the star polymers are ionized. The obtained star polymeric ionic liquid shows good thermal stability with initial thermal decomposition temperatures above 290 C-omicron. Moreover, after anion exchange, the TFSI- anion based hyperbranched star polymeric ionic liquid (HBPS-(PVIMTFSI)(x)) is used as the all-solid polymer electrolyte for lithium-ion batteries. The electrolytes (HBPS-(PVIMTFSI)(x)/LiTFSI) fabricated by the solution casting method exhibit a high room temperature ionic conductivity (4.76 x 10(-5) S cm(-1), the quantitative ratio of LiTFSI to the polymer matrix is 40%), a wide electrochemical window (4.9 V) and great interfacial compatibility.

引用

页码：3177 / 3185

页数：9

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