“…[1][2][3][4] Therefore, high re-safety in terms of low heat release, low smoke release and thermal runaway prevention capabilities, is a prerequisite for polymers applied in many elds, especially in aerospace, rail transit, new energy vehicles, etc. [5][6][7][8] The traditional manner for improving re-safe performance is the addition of ame retardants to the polymer matrix, such as compounds containing chlorine, bromine, phosphorus and silicon elements, [9][10][11][12][13] which have been employed but debated, tracked and evaluated for decades, since these additives cause migration and release problems during use, disposal and recycling as well as hazards to health and the environment. [14][15][16] In contrast, molecular design of re-safe polymers is a durable, environmentally benign strategy, the essence of which is to balance various properties and achieve optimization.…”