Both bis(4-methylphenyl) phenyl phosphine sulfide(BMPPS) and bis(4-carboxyphenyl) phenyl phosphine oxide(BCPPO) were synthesized by two step Friedel-Crafts reaction and oxidation reaction respectively with benzene
toluene and phosphorus trichloride as raw materials.After purified treatment with 95% ethanol
the structure of BMPPS and BCPPO were confirmed by employing DSC
FT-IR
1HNMR and elemental analysis.Vertical combustion tests show that the flame retardant properties of BCPPO on cotton fabric and terylene
which were impregnation treated by BCPPO
are obvious.And flame retardant properties on teryleng are superior to that on cotton fabric.