Previous approaches to suppressing fire hazards are concentrated on brominated flame retardants (BFRs) or phosphorus flame retardants (PFRs). However, their chemical hazards to health and environment have not been able to be ignored currently. It is quite urgent to propose a durable and environmentally-friendly fire-safe strategy, which can eliminate migration, release, and environmental hazards of traditional flame retardants during their use, disposal, and recycling. Herein, we design a fire-responsive molecule (FRM) only containing C, H, and O elements based on full-life-cycle consideration and achieve fire safety via the synergy of specifically binding aliphatic fragments and aromatized charring in combustion. The resulting polymer shows low fire hazard with excellent self-extinguish, low organic volatiles/heat/smoke release, and good comprehensive performance. This polymer can be fabricated to fibres with potential applications for textiles, and electronics, etc. Therefore, we achieve a durable fire-safe strategy without flame-retardant chemicals hazard. This approach can fundamentally eliminate the potential chemical hazards associated with the introduction of halogen or phosphorus flame retardants and give a new vision about solving the "flame retardant chemical hazard issues" that are debated, tracked, and evaluated for several decades.

中文翻译：

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通过热解产物固着和芳构化炭化的协同效应，对聚合材料进行火灾隐患管理。

以前抑制火灾的方法主要集中在溴化阻燃剂（BFR）或磷阻燃剂（PFR）。但是，它们目前对健康和环境的化学危害尚不能被忽略。迫切需要提出一种持久且环保的防火策略，以消除传统阻燃剂在其使用，处置和回收过程中的迁移，释放和环境危害。本文中，我们基于全生命周期考虑设计了仅包含C，H和O元素的火响应分子（FRM），并通过特异性结合脂肪族片段和燃烧中的芳香化炭化的协同作用实现了防火安全。所得聚合物显示出低火灾隐患，具有出色的自熄性，低有机挥发物/热量/烟雾释放，以及良好的综合性能。这种聚合物可以制成纤维，在纺织品，电子产品等方面具有潜在的应用前景。因此，我们实现了持久的防火策略，而不会危害阻燃剂。这种方法可以从根本上消除与引入卤素或磷阻燃剂有关的潜在化学危害，并为解决数十年来一直在辩论，跟踪和评估的“阻燃化学危害问题”提供新的视野。