Activation of Self-healing Processes in Ionomeric Elastomers by Local Heating

通过选择性加热受损区域来支持聚合物链运动、扩散，特别是非共价化学键的新的或重新形成，是恢复材料结构完整性的一种优雅方法。特别是离聚物中的可逆离子相互作用沿着聚集和多重态的形成是有利的。将偶极颗粒如金属/磁性纳米颗粒或带电物质（“纳米热点”）结合到聚合物基质中与在振荡电磁场（OEMF）中的选择性处理组合导致电磁能转化为热。本提案的目标将是开发和测试弹性体聚合物改性的“纳米热点”，可以选择性地加热的OEMF处理。此外，开发一种可重复的方法来量化微尺寸损伤的OEMF诱导的自愈效果将是计划工作的主要目标。

An elegant way to restore the materials structural integrity proceeds by the selective heating of damaged areas to support polymeric chain movement, diffusion and particularly the new or re-formation of non-covalent chemical bonds. Especially reversible ionic interactions in ionomers along with clustering and the formation of multiplets are favoured. The incorporation of dipolar particles like metal/magnetic nanoparticles or charged species (“nano-hotspots”) into the polymeric matrix leads in combination with a selective treatment in an oscillating electromagnetic field (OEMF) to a transformation of electromagnetic energy to heat. Goal of the present proposal will be the development and testing of elastomeric polymers modified with “nano-hotspots” that can selectively be heated by OEMF treatment. Additionally, the development of a reproducible method to quantify the OEMF-induced self-healing effectiveness of microsized damages will be a major objective of the planned work.