Electrostatic Interaction between the Ion Clusters for Reversible Cross-linking and Thermally stable Hydrogels
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초록
내용
Recently, hydrogels have attracted interests due to the improvement of stretchability and electrical conductivity simultaneously. The properties are suitable for the stretchable electronics. However, previous hydrogels are un-stability under thermal stress (e.g. phase separation). In addition, external physical stress caused damage on the polymers. The un-stability limited stretchable application under various environment. Here, hydrogels with ion clusters are synthesized. The hydrogel is composed of ion cluster for hydrophilic and hydrophobic monomer. The hydrogel kept transparent and electrical properties without phase separation under harsh condition (100℃). Moreover, stretchable (2636%) and self-healing in 3hr properties of hydrogels are shown. Thus, stretchable thermal sensors are fabricated using the ionic conductors with thermal and physical stability. The stretchable thermal sensor show consistent performance under various deformation and after self-healing.