Poly(thiourethane-co-ethylene oxide) networks crosslinked with disulfide bonds: Reinforcement with POSS and use for recyclable solid polymer electrolytes

Ullah, Shakir; Wang, Huaming; Hang, Guohua; Zhang, Tao; Li, Lei; Zheng, Sixun

doi:10.1016/j.polymer.2023.126318

Cited by 2 publications

(1 citation statement)

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“…The use of dynamic covalent cross-links, rather than irreversible chemical cross-links, would render APCN-based polymer electrolytes processable and recyclable without compromising their network characteristics. Although there are several examples in the literature on self-healable polymer network electrolytes, − there are only a small number of examples also including their recycling, with these examples concerning only networks based on simple building blocks and not APCNs. − Thus, the recycling and re-evaluation of APCN-based electrolytes bearing dynamic covalent cross-links are yet to be explored, something undertaken within the present study.…”

Section: Introductionmentioning

confidence: 99%

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

Apostolides,

Michael,

Patrickios

et al. 2024

ACS Appl. Mater. Interfaces

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We present the development of a platform of welldefined, dynamic covalent amphiphilic polymer conetworks (APCN) based on an α,ω-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 °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 ∼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.

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