Application of Hexachlorocyclotriphosphazene
Time:2021-09-25 14:18 Source:zeshi
Hexachlorocyclotriphosphazene was synthesized from Hexachlorocyclotriphosphazene and p-nitrophenol. Using Lucas reagent or sodium borohydride, hexa (4-NITROPHENOXY) cyclotriphosphazene was reduced to hexa (4-aminophenoxy) triphosphazene, and its structure was characterized by IR and NMR. Hexa (4-aminophenoxy) cyclotriphosphazene is a polynuclear organic compound with inorganic core, which can be used to synthesize hyperbranched compounds or as curing agent of high temperature epoxy resin.
through Hexachlorocyclotriphosphazene α- Polyfluorinated phosphonitrile was obtained by ring opening polymerization in chloronaphthalene, which reacted with sodium p-phenylphenol to synthesize poly (p-phenylphenol) - substituted phosphonitrile. The IR and H NMR spectra of the polymer were determined. The estimated number average molecular weight of GPC is 6 × 104。 Torsion analysis showed that the glass transition temperature and viscosity temperature of the polymer were 0 ℃ and 130 ℃ respectively, and the vulcanization temperature was 210 ℃.
a new multifunctional compound based on cyclotriphosphazene (pcnep) was synthesized from dicyclopentadiene, ethylene glycol and Hexachlorocyclotriphosphazene. The chemical structures of pcnep and its intermediates were characterized by Fourier transform infrared spectroscopy, NMR, mass spectrometry and epoxy value. The synthesized alicyclic epoxy resin was cured with Methyltetrahydrophthalic anhydride, and the thermal properties of pcnep cured products were compared with commercial alicyclic epoxy resin erl-4221 by thermogravimetric analysis. The results showed that the initial thermal decomposition temperature of pcnep cured product was lower than that of erl-4221 cured product, but the residual carbon content of pcnep cured product was 28.87% and 24.73% at 500 ℃ and 700 ℃, respectively.
through Hexachlorocyclotriphosphazene α- Polyfluorinated phosphonitrile was obtained by ring opening polymerization in chloronaphthalene, which reacted with sodium p-phenylphenol to synthesize poly (p-phenylphenol) - substituted phosphonitrile. The IR and H NMR spectra of the polymer were determined. The estimated number average molecular weight of GPC is 6 × 104。 Torsion analysis showed that the glass transition temperature and viscosity temperature of the polymer were 0 ℃ and 130 ℃ respectively, and the vulcanization temperature was 210 ℃.
a new multifunctional compound based on cyclotriphosphazene (pcnep) was synthesized from dicyclopentadiene, ethylene glycol and Hexachlorocyclotriphosphazene. The chemical structures of pcnep and its intermediates were characterized by Fourier transform infrared spectroscopy, NMR, mass spectrometry and epoxy value. The synthesized alicyclic epoxy resin was cured with Methyltetrahydrophthalic anhydride, and the thermal properties of pcnep cured products were compared with commercial alicyclic epoxy resin erl-4221 by thermogravimetric analysis. The results showed that the initial thermal decomposition temperature of pcnep cured product was lower than that of erl-4221 cured product, but the residual carbon content of pcnep cured product was 28.87% and 24.73% at 500 ℃ and 700 ℃, respectively.
