Dynamic Covalent Amphiphilic Polymer Conetworks Based on End-Linked Pluronic F108: Preparation, Characterization, and Evaluation as Matrices for Gel Polymer Electrolytes

被引:7
作者
Apostolides, Demetris E. [1 ]
Michael, George [1 ]
Patrickios, Costas S. [1 ]
Notredame, Benoit [2 ]
Zhang, Yinghui [2 ]
Gohy, Jean-Francois [2 ]
Prevost, Sylvain [3 ]
Gradzielski, Michael [4 ]
Jung, Florian A. [5 ]
Papadakis, Christine M. [5 ]
机构
[1] Univ Cyprus, Dept Chem, CY-1678 Nicosia, Cyprus
[2] Univ Catholique Louvain UCL, Inst Condensed Matter & Nanosci IMCN, Bioand Soft Matter BSMA, B-1348 Louvain La Neuve, Belgium
[3] Inst Max Laue Paul Langevin ILL, F-38042 Grenoble, France
[4] Tech Univ, Stranski Lab Phys & Theoret Chem, Inst Chem, D-10623 Berlin, Germany
[5] Tech Univ Munich, TUM Sch Nat Sci, Phys Dept, Soft Matter Phys Grp, D-85748 Garching, Germany
关键词
amphiphilic polymer conetworks; self-assembly; stretchability; small-angle neutron scattering; Pluronics; gel polymer electrolytes; ion conductivity; TRIBLOCK COPOLYMER; AQUEOUS-SOLUTIONS; BLOCK-COPOLYMERS; OXIDE); MICELLIZATION; HYDROGELS; GELATION; THERMODYNAMICS; CONDUCTIVITY; TRANSITION;
D O I
10.1021/acsami.3c19189
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
We present the development of a platform of well-defined, dynamic covalent amphiphilic polymer conetworks (APCN) based on an alpha,omega-dibenzaldehyde end-functionalized linear amphiphilic poly(ethylene glycol)-b-poly(propylene glycol)-b-poly(ethylene glycol) (PEG-b-PPG-b-PEG, Pluronic) copolymer end-linked with a triacylhydrazide oligo(ethylene glycol) triarmed star cross-linker. The developed APCNs were characterized in terms of their rheological (increase in the storage modulus by a factor of 2 with increase in temperature from 10 to 50 degrees C), self-healing, self-assembling, and mechanical properties and evaluated as a matrix for gel polymer electrolytes (GPEs) in both the stretched and unstretched states. Our results show that water-loaded APCNs almost completely self-mend, self-organize at room temperature into a body-centered cubic structure with long-range order exhibiting an aggregation number of around 80, and display an exceptional room temperature stretchability of similar to 2400%. Furthermore, ionic liquid-loaded APCNs could serve as gel polymer electrolytes (GPEs), displaying a substantial ion conductivity in the unstretched state, which was gradually reduced upon elongation up to a strain of 4, above which it gradually increased. Finally, it was found that recycled (dissolved and re-formed) ionic liquid-loaded APCNs could be reused as GPEs preserving 50-70% of their original ion conductivity.
引用
收藏
页码:23813 / 23825
页数:13
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