A novel phosphorus-nitrogen containing intumescent flame retardant （P-N IFR） was prepared via the reaction of dichlor-opentate with N-methylaniline. The structure of the product was confirmed by ^1H NMR, ^31p NMR, M...A novel phosphorus-nitrogen containing intumescent flame retardant （P-N IFR） was prepared via the reaction of dichlor-opentate with N-methylaniline. The structure of the product was confirmed by ^1H NMR, ^31p NMR, MS and IR. TGA analysis showed it has effective thermal stability.展开更多
Seven caged bicyclic phosphate compounds were synthesized by using 1-oxo-4-hydroxymethyl-2, 6, 7-trioxa-l-pho-sphabicyclo [ 2.2.2 ] octane （PEPA） as starting material. Within them were three PEPA derivatives contain...Seven caged bicyclic phosphate compounds were synthesized by using 1-oxo-4-hydroxymethyl-2, 6, 7-trioxa-l-pho-sphabicyclo [ 2.2.2 ] octane （PEPA） as starting material. Within them were three PEPA derivatives containing single caged bicyclic phosphate structure（ 1a, 2a, 3a）, another three PEPA deviratives containing two caged bicyclic phosphate structures（1b, 2b, 3b） and one devirative（1c） containing three caged bicyclic phosphate structures. Structures of the products were characterized by FTIR, ^1H NMR, elemental analysis and TG analysis. The reaction conditions were also discussed. Thermal analysis showed they had high thermal stability and excellent char-forming ability. Besides, these compounds had pentaerythritol bone and flame retardant dements of phosphorus, bromine or nitrogen simultaneously in their molecules, endowed them with good fire retardancy, and made them can be used as intumescent flame retardant.展开更多
The synthesis, properties and flame retardation of two kinds of flame retardants, mono(1 chloride 2 hydroxy propyl) phosphate and antimony mono(1 chloride 2 hydroxy propyl)phosphate were reported. Mono(1 chloride 2 hy...The synthesis, properties and flame retardation of two kinds of flame retardants, mono(1 chloride 2 hydroxy propyl) phosphate and antimony mono(1 chloride 2 hydroxy propyl)phosphate were reported. Mono(1 chloride 2 hydroxy propyl) phosphate was synthesized from epichlorohydrin and phosphoric acid at molar ratio of 1∶1.2 in the solvent of methyl benzene with AlCl 3 catalyst under the conditions of reaction temperature of 90 ℃ and reaction time of 2 h, its total yield is 82.5%. Antimony mono(1 chloride 2 hydroxy propyl)phosphate was synthesized from mono(1 chloride 2 hydroxy propyl)phosphate and antimony trioxide in the solvent of dimethyl sulfoxide with oxalic acid catalyst under the conditions of reaction temperature of 92 ℃ and reaction time of 4 h, the total yield is 85.6%. The physical chemical properties of the products were determined. When adding 15% of mono(1 chloride 2 hydroxy propyl) phosphate and antimony mono(1 chloride 2 hydroxy propyl)phosphate in polyethylene respectively, the oxygen indexes (OI) are 31.4 and 33.7 respectively. [展开更多
以螺环季戊四醇双磷酸酯二酰氯(SPDPC)和苯基二氯磷酸酯(PDCP)为酰氯单体,分别与哌嗪及乙二胺通过溶液缩聚合成了4种聚磷酰胺阻燃剂——聚哌嗪季戊四醇双磷酸酯(PPS)、聚乙二胺季戊四醇双磷酸酯(PES)、聚哌嗪苯基磷酸酯(PPP)及聚乙二胺...以螺环季戊四醇双磷酸酯二酰氯(SPDPC)和苯基二氯磷酸酯(PDCP)为酰氯单体,分别与哌嗪及乙二胺通过溶液缩聚合成了4种聚磷酰胺阻燃剂——聚哌嗪季戊四醇双磷酸酯(PPS)、聚乙二胺季戊四醇双磷酸酯(PES)、聚哌嗪苯基磷酸酯(PPP)及聚乙二胺苯基磷酸酯(PEP)。以IR、1H NMR,31 P NMR、元素分析、TGA表征其结构及热性能,以乌氏粘度计测定PPS与PES特性黏度,结果发现反应18h聚合度最大,分别为0.19和0.21dL/g。以激光解吸电离-飞行时间质谱仪(MALDI-TOF MS)表征PPP与PEP分子量及组成。结果表明聚合度均在7～8之间。展开更多
文摘A novel phosphorus-nitrogen containing intumescent flame retardant （P-N IFR） was prepared via the reaction of dichlor-opentate with N-methylaniline. The structure of the product was confirmed by ^1H NMR, ^31p NMR, MS and IR. TGA analysis showed it has effective thermal stability.
文摘Seven caged bicyclic phosphate compounds were synthesized by using 1-oxo-4-hydroxymethyl-2, 6, 7-trioxa-l-pho-sphabicyclo [ 2.2.2 ] octane （PEPA） as starting material. Within them were three PEPA derivatives containing single caged bicyclic phosphate structure（ 1a, 2a, 3a）, another three PEPA deviratives containing two caged bicyclic phosphate structures（1b, 2b, 3b） and one devirative（1c） containing three caged bicyclic phosphate structures. Structures of the products were characterized by FTIR, ^1H NMR, elemental analysis and TG analysis. The reaction conditions were also discussed. Thermal analysis showed they had high thermal stability and excellent char-forming ability. Besides, these compounds had pentaerythritol bone and flame retardant dements of phosphorus, bromine or nitrogen simultaneously in their molecules, endowed them with good fire retardancy, and made them can be used as intumescent flame retardant.
文摘The synthesis, properties and flame retardation of two kinds of flame retardants, mono(1 chloride 2 hydroxy propyl) phosphate and antimony mono(1 chloride 2 hydroxy propyl)phosphate were reported. Mono(1 chloride 2 hydroxy propyl) phosphate was synthesized from epichlorohydrin and phosphoric acid at molar ratio of 1∶1.2 in the solvent of methyl benzene with AlCl 3 catalyst under the conditions of reaction temperature of 90 ℃ and reaction time of 2 h, its total yield is 82.5%. Antimony mono(1 chloride 2 hydroxy propyl)phosphate was synthesized from mono(1 chloride 2 hydroxy propyl)phosphate and antimony trioxide in the solvent of dimethyl sulfoxide with oxalic acid catalyst under the conditions of reaction temperature of 92 ℃ and reaction time of 4 h, the total yield is 85.6%. The physical chemical properties of the products were determined. When adding 15% of mono(1 chloride 2 hydroxy propyl) phosphate and antimony mono(1 chloride 2 hydroxy propyl)phosphate in polyethylene respectively, the oxygen indexes (OI) are 31.4 and 33.7 respectively. [
文摘以螺环季戊四醇双磷酸酯二酰氯(SPDPC)和苯基二氯磷酸酯(PDCP)为酰氯单体,分别与哌嗪及乙二胺通过溶液缩聚合成了4种聚磷酰胺阻燃剂——聚哌嗪季戊四醇双磷酸酯(PPS)、聚乙二胺季戊四醇双磷酸酯(PES)、聚哌嗪苯基磷酸酯(PPP)及聚乙二胺苯基磷酸酯(PEP)。以IR、1H NMR,31 P NMR、元素分析、TGA表征其结构及热性能,以乌氏粘度计测定PPS与PES特性黏度,结果发现反应18h聚合度最大,分别为0.19和0.21dL/g。以激光解吸电离-飞行时间质谱仪(MALDI-TOF MS)表征PPP与PEP分子量及组成。结果表明聚合度均在7～8之间。
