高度灵活但不敏感应变的合聚合物聚合物
Wen Wen Deng1, Ze Ping Zhang1, Min Zhi Rong1
1Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GD HPPC Lab, IGCME, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China. zhangzp8@mail.sysu.edu.cn.
Materials horizons
|July 10, 2024
概括
这项研究开发了使用可逆互锁宏分子网络 (RILNs) 的可调节电气和机械性能的自愈导电聚合物薄膜. 这些先进的材料在变形和重复使用过程中保持稳定的导电性,非常适合灵活的电子产品.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 导电聚合物 导电聚合物
背景情况:
- 开发具有优良电气性能,机械强度和自我修复能力的内在导电聚合物是一项挑战.
- 可逆互锁的宏分子网络 (RILNs) 提供了一种有希望的方法来克服这些局限性.
研究的目的:
- 创建一种具有增强电气和机械性能,包括自我愈合能力的新型导电聚合物复合材料.
- 为了证明这些材料在各种灵活的电子应用中具有可调的性质.
主要方法:
- 聚3,4-乙烯二氧化 (PEDOT) 与柔性多硫酸网络 (Diels-Alder交叉连接) 和刚性聚氨酸网络 (Schiff基交叉连接) 结合在一起.
- 为了调整复合物的特性,PEDOT含量变化了 (1.48-22.24重%) .
主要成果:
- 由此产生的PEDOT/RILNs薄膜具有可调节的电导率 (59.3-980.5 S cm-1) 和机械强度 (8.4-81.6 MPa, 44.5-411.0%延长).
- 在大型延伸,重复拉伸 (1500周期) 和曲 (106周期) 期间观察到异常的导电稳定性.
- 由于可逆共价键,这些材料证明了机械和电性能的自主恢复.
结论:
- 提出的PEDOT/RILNs方法成功地解决了对灵活电子的相互矛盾要求,产生了具有优越和可调节性质的材料.
- 展示的自动供电传感器凸显了这些先进的导电聚合物在下一代电子设备中的实际潜力.
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