Facile One Pot Polycondensation Method to Synthesize the Crosslinked Polyethylene glycol-Based Copolymer Electrolytes

被引:11
|
作者
Gong, Xianjing [1 ]
Shi, Dean [2 ]
Zeng, Huihui [2 ]
Yang, Yingkui [2 ]
Jiang, Tao [2 ]
Zhang, Qunchao [2 ]
Jiang, Shichun [1 ]
Li, Robert K. Y. [3 ]
Mai, Yiu-Wing [4 ]
机构
[1] Tianjin Univ, Sch Mat Sci & Engn, Weijin Rd 92, Tianjin 300072, Peoples R China
[2] Hubei Univ, Sch Mat Sci & Engn, Youyi Ave 368, Wuhan 430062, Peoples R China
[3] City Univ Hong Kong, Dept Phys & Mat Sci, Tat Chee Ave, Kowloon, Hong Kong, Peoples R China
[4] Univ Sydney, CAMT, Sch Aerosp Mech & Mechatron Engn J07, Sydney, NSW 2006, Australia
关键词
comb-like copolymers; crosslinked; PEG; polymer electrolytes; HIGH IONIC-CONDUCTIVITY; SOLID POLYMER ELECTROLYTES; MOLECULAR-WEIGHT; OXIDE); NETWORKS; LINKING; LIQUID; CHAIN; PERFORMANCE; STABILITY;
D O I
10.1002/macp.201600040
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Comb-like polyethylene glycol (PEG)-based copolymer electrolytes with given crosslinking density are synthesized using PEG as the main chain segments (denoted as MC-PEG), methoxy polyethylene glycol (MPEG) as side chain segments (denoted as SC-PEG), and hexamethylene1,6-diisocyanate homopolymer (HDI trimer) as bridging and/or crosslinking agent. In this study, the effects of molecular weight of MC-PEG and SC-PEG on Li ion conductivities of the copolymer have been examined. If MC-PEG and/or SC-PEG do not crystallize, the ion conductivities of graft copolymer electrolyte increase with either decreasing MC-PEG or increasing SC-PEG segment length. The highest ion conductivity of the copolymer electrolyte at room temperature reaches up to 7.7 x 10(-4) S cm(-1) when the molecular weight of MC-PEG is 400 g mol(-1) and SC-PEG is 1000 g mol(-1) (denoted as GC400-1000). However, when the MC-PEG and/or SC-PEG segments begin to crystallize (i.e., GC400-2000), where the flexibility of the related PEG molecular chains is largely reduced, the ion conductivity drops by almost two orders comparing to that of GC400-1000 copolymer electrolyte. Meanwhile, crosslinked GC400-1000 electrolyte has good thermal and electrochemical stability as well as high mechanical properties, making it suitable for commercial applications in Li ion secondary batteries.
引用
收藏
页码:1607 / 1613
页数:7
相关论文
共 50 条
  • [1] Synthesis and evaluation of new amphiphilic polyethylene glycol-based triblock copolymer surfactants
    Mohamed, MZ
    Ismail, DA
    Mohamed, AS
    JOURNAL OF SURFACTANTS AND DETERGENTS, 2005, 8 (02) : 175 - 180
  • [2] ExtraPEG: A Polyethylene Glycol-Based Method for Enrichment of Extracellular Vesicles
    Mark A. Rider
    Stephanie N. Hurwitz
    David G. Meckes
    Scientific Reports, 6
  • [3] ExtraPEG: A Polyethylene Glycol-Based Method for Enrichment of Extracellular Vesicles
    Rider, Mark A.
    Hurwitz, Stephanie N.
    Meckes, David G., Jr.
    SCIENTIFIC REPORTS, 2016, 6
  • [4] Role of polyvinyl alcohol in the conductivity behaviour of polyethylene glycol-based composite gel electrolytes
    Patel, S. K.
    Patel, R. B.
    Awadhia, A.
    Chand, N.
    Agrawal, S. L.
    PRAMANA-JOURNAL OF PHYSICS, 2007, 69 (03): : 467 - 475
  • [5] Role of polyvinyl alcohol in the conductivity behaviour of polyethylene glycol-based composite gel electrolytes
    S. K. Patel
    R. B. Patel
    A. Awadhia
    N. Chand
    S. L. Agrawal
    Pramana, 2007, 69 : 467 - 475
  • [6] One-Step Bulk-Suspension Polymerization of Polyethylene Glycol-Based Copolymer Microspheres for Phase Change Textiles
    Zhou, Guohang
    Zeng, Jiexiang
    Tang, Song
    Bai, Zijian
    Jiang, Jianyu
    Zhang, Hong
    Wang, Yan
    POLYMERS, 2023, 15 (09)
  • [7] Neural stem cell encapsulation and differentiation in strain promoted crosslinked polyethylene glycol-based hydrogels
    Li, Hang
    Zheng, Jukuan
    Wang, Huifeng
    Becker, Mathew L.
    Leipzig, Nic D.
    JOURNAL OF BIOMATERIALS APPLICATIONS, 2018, 32 (09) : 1222 - 1230
  • [8] Polyethylene Glycol-Based Solid Polymer Electrolytes: Encapsulation Materials with Excellent Anodic Bonding Performance
    Chao Du
    Cui-rong Liu
    Xu Yin
    Journal of Inorganic and Organometallic Polymers and Materials, 2017, 27 : 1521 - 1525
  • [9] Polyethylene Glycol-Based Solid Polymer Electrolytes: Encapsulation Materials with Excellent Anodic Bonding Performance
    Du, Chao
    Liu, Cui-rong
    Yin, Xu
    JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS, 2017, 27 (05) : 1521 - 1525
  • [10] Electrochemical Investigations of Polyethylene Glycol-Based "Soggy Sand" Electrolytes - From the Local Mechanism to the Overall Conduction
    Jarosik, Anna
    Pfaffenhuber, Christian
    Bunde, Armin
    Maier, Joachim
    ADVANCED FUNCTIONAL MATERIALS, 2011, 21 (20) : 3961 - 3966