Abstract Polymer materials with good mechanical properties, solubility and flexible self-healing conditions were of great value to the development of modern high-tech fields. Herein, α,ω-aminopropyl terminated polydimethylsiloxane (PDMS, Mn = 2000), terephthalaldehyd (TA) and 3-aminophenylboronic acid (APB) were used to construct a three-dimensional network via simple and effective reactions, such as the Schiff base reaction and the dehydration reaction. The obtained PDMS elastomer prepared by low molecular weight main chain could achieve very good mechanical performance of tensile strength 2.54 MPa and the average elongation at break of 275.3%. Through the dynamic imine bonds formed by Schiff base reaction and the coordination of boron oxygen bonds and hydrogen bonds, we have constructed a high efficiency self-healing network. The network could achieve self-healing at room temperature with a self-healing efficiency of 91.6%, at high temperature with a self-healing efficiency of 95.1% and in water at a self-healing efficiency of 85.5%. In addition, multi-walled carbon nanotubes (MWCNTs) was compounded with a polymer system to prepare self-healing flexible electronic devices. Due to the electric resistance of PDMS/MWCNTs sensitively modified with the change of tensile and bending angles, this might be of great significance for the application of sensors.

中文翻译：

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一种用于柔性电子设备的可自修复、可溶解和可拉伸的有机硅弹性体

摘要 具有良好力学性能、溶解性和灵活自愈条件的高分子材料对现代高科技领域的发展具有重要价值。在此，α,ω-氨基丙基封端的聚二甲基硅氧烷（PDMS，Mn = 2000）、对苯二醛（TA）和3-氨基苯基硼酸（APB）通过简单有效的反应构建了三维网络，例如席夫碱反应和脱水反应。得到的由低分子量主链制备的PDMS弹性体可以达到很好的力学性能，拉伸强度为2.54 MPa，平均断裂伸长率为275.3%。通过席夫碱反应形成的动态亚胺键以及硼氧键和氢键的配位，我们构建了一个高效的自愈网络。该网络可实现室温自愈，自愈率为91.6%，高温自愈率为95.1%，水中自愈率为85.5%。此外，多壁碳纳米管（MWCNT）与聚合物体系复合以制备自修复柔性电子器件。由于PDMS/MWCNTs的电阻随拉伸和弯曲角度的变化而敏感地改变，这对传感器的应用可能具有重要意义。多壁碳纳米管（MWCNTs）与聚合物系统复合以制备自修复柔性电子器件。由于PDMS/MWCNTs的电阻随拉伸和弯曲角度的变化而敏感地改变，这对传感器的应用可能具有重要意义。多壁碳纳米管（MWCNTs）与聚合物系统复合以制备自修复柔性电子器件。由于PDMS/MWCNTs的电阻随拉伸和弯曲角度的变化而敏感地改变，这对传感器的应用可能具有重要意义。