Vitrimers are cross-linked networks through reversible dynamic covalent bonds. Usually, self-healing of vitrimers are realized by rearrangement of the networks under high temperature (>150 °C) and high pressure. The vitrimers that can be recovered under milder conditions have rarely been reported. In this work, interesting solvent-induced recyclable polyimine vitrimers derived from vanillin were first developed. Their recovery processes can be carried out through an unexpectedly fast and unusual gel–sol transition (less than 30 min) with the help of a few solvents. Thanks to this special ability, the polyimine vitrimers not only can be reprocessed by traditional hot-press and degradation, but also exhibit solvent-induced welding and self-healing abilities at room temperature. Moreover, aldehyde monomers can be recycled through chemical degradation without further separation in the mixture of recycled monomers, and the effects of aldehyde monomers on the properties of as-prepared polyimine vitrimers were first studied in detail.

中文翻译：

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基于香兰素的聚亚胺三聚体凝胶-溶胶转变：赋予三聚体具有额外的焊接和自愈能力

Vitrimers是通过可逆的动态共价键交联的网络。通常，通过在高温（> 150°C）和高压下重新排列网络，可实现修磨剂的自我修复。可以在较温和条件下回收的玻璃体很少有报道。在这项工作中，首先开发了由香兰素衍生的有趣的溶剂诱导型可回收聚亚胺三聚体。在几种溶剂的帮助下，可以通过出乎意料的快速，异常的凝胶-溶胶转变（不到30分钟）来进行回收。由于这种特殊的能力，聚亚胺三聚体不仅可以通过传统的热压和降解工艺进行再加工，而且还具有在室温下溶剂诱导的焊接和自修复能力。而且，