The development of efficient thermal insulation materials with better flame-retardant property is of great importance for thermal energy saving in many aspects. Herein, we report the preparation of monolithic conjugated microporous polymers nanotubes (M-CMPsN) by Pd (0)/Cu I catalytic Sonogashira - Hagihara cross-coupling reaction using 1,3,5-triethynylbenzene and 2,4,6-tribromoaniline as building blocks. The M-CMPsN samples exhibit excellent mechanical property with a compressive strength of 92 kPa at 70% stain. Taking advantage of their abundant porosity, the M-CMPsN samples show superior thermal insulation with a low thermal conductivity of 0.03 W m^-1 k^-1 in air. The N-rich feature of the M-CMPsN also endows them better flame retardancy. To further enhance their flame retardant property, the incorporation of Mg(OH)₂ and ionic liquid into M-CMPsN was performed and the results show that flame retardancy of the treated M-CMPsN samples could be significantly improved, e.g. its peak heat release rate (pHRR) value is only one fifth of that of the untreated M-CMPsN, making them promising candidates as thermal insulation and flame retardant coating materials with great potentials for thermal energy saving applications.

在许多方面，开发具有更好的阻燃性能的高效隔热材料对于节省热能至关重要。本文中，我们报道了使用1,3,5-三乙炔基苯和2,4,6-三溴苯胺作为Pd（0）/ Cu I催化Sonogashira-Hagihara交叉偶联反应制备单片共轭微孔聚合物纳米管（M-CMPsN）建筑模块。M-CMPsN样品具有出色的机械性能，在70％污点下的抗压强度为92 kPa。利用其丰富的孔隙率，M-CMPsN样品显示出出色的隔热性能，导热系数仅为0.03 W m ^-1 k ^-1在空中。M-CMPsN的富氮特性也赋予它们更好的阻燃性。为了进一步提高其阻燃性能，将Mg（OH）₂和离子液体掺入M-CMPsN中，结果表明，处理后的M-CMPsN样品的阻燃性可以得到显着改善，例如其峰值放热率（pHRR）值仅是未经处理的M-CMPsN的五分之一，这使其有望成为具有良好节能潜力的隔热和阻燃涂料的候选材料。