Biphasic epoxy-ionic liquid structural electrolytes: minimising feature size through cure cycle and multifunctional block-copolymer addition

نویسندگان

چکیده

Abstract Structural electrolytes provide mechanical properties approaching structural resin combined with a high degree of ionic conductivity. Here, based on bisphenol A diglycidyl ether and the liquid 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide (EMIM-TFSI) were synthesised through reaction induced phase separation (RIPS) using isophorone diamine (iPDA) as curing agent. The microstructure resulting materials controlled both initial formulations temperature. Curing at room temperature generated bi-continuous structure improved performance conductivity electrolytes. balance between can be systematically adjusted; for example, promising Young’s modulus 800 MPa was obtained simultaneously an 0.28 mS cm −1 , formulation containing 35 vol% EMIM-TFSI. lengthscale features reduced by order magnitude introducing multifunctional block-copolymers (MF-bcP) glycidyl methacrylate (GMA) quaternised (2-dimethylamino)ethyl (DMAEMA). Small angle neutron scattering (SANS), during curing, identified least two phases different length scale, MF-bcP, in agreement microstructures observed scanning electron microscopy. Such may required when electrodes that also have finer characteristic lengthscales. addition MF-bcP to EMIM-TFSI produced 530 0.64 .

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ژورنال

عنوان ژورنال: Multifunctional materials

سال: 2021

ISSN: ['2399-7532']

DOI: https://doi.org/10.1088/2399-7532/ac1ea7