For emerging biocompatible, wearable, and stretchable epidermal electronic devices, it is essential to realize novel stretchable conductors with the attributes of transparency, low-cost and nontoxic components, green-solvent processbility, self-healing, and thermal stabililty. Although conducting materials-rubber composites, ionic hydrogels, organogels have been developed, no stretchable material system that meets all the outlined requirements has been reported. Here, a series of P(SPMA-r-MMA) polymers with different ratios of ionic side chains is designed and synthesized, and it is demonstrated that the resulting stretchable ionic conductors with glycerol are transparent, water processable, self-healable, and thermally stable due to the chemically linked ionic side chain, satisfying all of the aforementioned requirements. Among the series of polymer gels, the P(SPMA0.75 -r-MMA0.25 ) gel shows optimum conductivity (6.7 × 10-4 S cm-1 ), stretchability (2636% of break at elongation), and self-healing (98.3% in 3 h) properties. Accordingly, the transparent and self-healable P(SPMA0.75 -r-MMA0.25 ) gels are used to realize thermally robust actuators up to 100 °C and deformable and self-healable thermal sensors.

中文翻译：

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用于执行器和传感器的可水处理，可拉伸，自修复，热稳定和透明的离子导体。

对于新兴的生物相容性，可穿戴和可拉伸的表皮电子设备，必须实现具有透明性，低成本和无毒成分，绿色溶剂的可加工性，自我修复和热稳定性的新型可拉伸导体。尽管已经开发出导电材料-橡胶复合材料，离子水凝胶，有机凝胶，但尚无可满足所有概述要求的可拉伸材料体系的报道。在此，设计并合成了一系列具有不同离子侧链比例的P（SPMA-r-MMA）聚合物，并证明了所得到的甘油可拉伸离子导体是透明的，可水处理的，可自愈的并且具有热稳定性由于化学键合的离子侧链的缘故，它稳定，可以满足所有上述要求。在一系列聚合物凝胶中，P（SPMA0.75 -r-MMA0.25）凝胶显示出最佳的导电性（6.7×10-4 S cm-1），可拉伸性（伸长率断裂为266％）和自愈性。 （3小时内占98.3％）属性。因此，透明且可自我修复的P（SPMA0.75 -r-MMA0.25）凝胶可用于实现高达100°C的热稳定执行器以及可变形且可自我修复的热传感器。