Fig. 2: Synthesis and characterizations of PEE. | Nature Communications

Fig. 2: Synthesis and characterizations of PEE.

From: Polyelectrolyte elastomer-based ionotronic sensors with multi-mode sensing capabilities via multi-material 3D printing

Fig. 2: Synthesis and characterizations of PEE.The alternative text for this image may have been generated using AI.

a The synthesis of monomer, BS. b An image of the as-prepared BS. c Chemical structures of monomers, BS and MEA, and crosslinker, HDDA. d Synthesis of p(BS-co-MEA) network via photopolymerization. e The p(BS-co-MEA) network contains engrafted negative charges and mobile positive charges. f FTIR spectra of the precursor of p(BS-co-MEA) before and after polymerization. The inset shows the disappearance of the peak corresponding to the vinyl group. g Nominal uniaxial tensile stress-strain curves of p(BS-co-MEA) with various molar ratios of BS:MEA. h The variations of fracture strain and Young’s modulus with the molar ratios of BS:MEA. The error bars represent standard deviations. i Transmittance of various p(BS-co-MEA). j TGA measurement of p(BS-co-MEA) with the molar ratio of BS:MEA = 1:1. k The changes in weight (orange) and conductivity (green) of PEE and LiE after soaking in water for 7 days and drying. The error bars represent standard deviations.

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