Inorganic polymers and their substitutes with a backbone of alternating phosphorus and nitrogen atoms, known as polyphosphazenes, have attracted growing attention in recent years.

• 聚磷腈及其衍生物是以磷、氮原子交替排列作为主链结构的一类新型无机高分子，由于其结构的特殊性，所以它集稳定与活泼于一身，稳定的一面主要体现在六元环结构上，生成的聚合物耐酸碱、耐高温、并具有多种功能与用途；