Key Laboratory of Polymeric Materials Design and Synthesis for Biomedical Function, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
Soft Matter. 2023 May 31;19(21):3925-3932. doi: 10.1039/d3sm00368j.
Stretchable ionic conductive elastomers have been extensively studied due to their great application potential in the fields of sensors, batteries, capacitors and flexible robots. However, it is still challenging to prepare multifunctional ionic conductive elastomers with high mechanical strength and excellent tensile properties by a green and efficient method. In this study, we prepared PDES-DMA ionic conductive elastomers by a "one step" rapid polymerization of AA/ChCl-type polymerizable deep eutectic solvents (PDES) and ,-dimethylacrylamide (DMA) under ultraviolet (UV) irradiation. In addition to the characteristics of high mechanical strength (tensile strength of 9.27 MPa) and excellent tensile properties (elongation at break of 1071%), the PDES-DMA elastomer also has high transparency (>80%), strong self-adhesion (adhesion strength with glass surface 133.8 kPa) and self-healing properties. In addition, sensors based on the ionic conductive elastomer can be used to detect human movements such as finger, wrist, elbow, ankle and knee bending. Considering the convenience of the preparation method and the excellent versatility of the prepared PDES-DMA ionic conductive elastomer, we believe that the method proposed in this study has potential application prospects in the field of flexible electronics.
由于在传感器、电池、电容器和柔性机器人等领域具有巨大的应用潜力，可拉伸离子导电弹性体受到了广泛的研究。然而，通过绿色高效的方法来制备具有高机械强度和优异拉伸性能的多功能离子导电弹性体仍然具有挑战性。在这项研究中，我们通过在紫外光（UV）照射下，一步快速聚合 AA/ChCl 型聚合性深共晶溶剂（PDES）和，-二甲基丙烯酰胺（DMA），制备了 PDES-DMA 离子导电弹性体。除了具有高机械强度（拉伸强度为 9.27 MPa）和优异的拉伸性能（断裂伸长率为 1071%）的特点外，PDES-DMA 弹性体还具有高透明度（>80%）、强自粘性（与玻璃表面的附着力为 133.8 kPa）和自修复性能。此外，基于离子导电弹性体的传感器可用于检测手指、手腕、肘部、脚踝和膝盖弯曲等人体运动。考虑到制备方法的便利性和所制备的 PDES-DMA 离子导电弹性体的优异通用性，我们相信本研究提出的方法在柔性电子领域具有潜在的应用前景。
