Showing papers on "Triphenyl phosphate published in 2004"
TL;DR: The risk assessment indicates that the observed concentrations of organophosphate flame retardants and plasticizers in indoor air are below the predicted threshold for human health effects.
208 citations
TL;DR: In this paper, a new proton-conducting polymer electrolytes based on new porous films of polybenzimidazole doped with phosphoric acid have been obtained.
Abstract: New proton-conducting polymer electrolytes based on new porous films of polybenzimidazole doped with phosphoric acid have been obtained. The porous polybenzimidazole films were prepared by leaching out a low-molecular-weight compound using a selective solvent of the porogen from polymer/porogen mixtures. This method allows control over the porosity level up to porosities of 75%. The pore size and morphology strongly depend on the porogen/PBI ratio as observed by SEM. The pore size varies from dimethyl phthalate>diphenyl phthalate>triphenyl phosphate. The acid uptake of the membranes, and therefore the ionic conductivity of the films, increases with the porosity. Ionic conductivity as high as 5 × 10-2 S/cm and mechanically stable membranes are easily obtained by soaking the highly porous films...
180 citations
TL;DR: In this article, the effects of incorporating different flame retardants into the unsaturated polyesters were investigated by UL-94, DSC, TGA, LOI, MTGA, Py/GC/MS and adiabatic bomb calorimeter.
94 citations
TL;DR: In this paper, X-ray absorption near-edge structure (XANES) spectroscopy was used to monitor the chemical properties of tribochemical films generated from oil solutions comprised of two additives containing phosphorus and sulfur.
41 citations
TL;DR: The recovery and repeatability of the MISPE method were affected most by NaCl in the tested concentrations, while urea, creatinine and hippuric acid had no significant influence.
36 citations
TL;DR: In this paper, the effect of bisphenol A bis(diphenyl phosphate) oligomer (BDP) on the limiting oxygen index test method and thermal decomposition of poly(butylene terephthalate) (PBT) was studied.
34 citations
TL;DR: In this article, the interaction between poly(bisphenol A carbonate) (PBAC) and phosphorus compounds such as triphenylphosphine oxide (TPPO),triphenyl phosphate (TPP), and resorcinol bis(diphenyl phosph) (RDP) was clarified.
Abstract: To clarify the interaction between poly(bisphenol A carbonate) (PBAC) and phosphorus compounds such as triphenylphosphine oxide (TPPO), triphenyl phosphate (TPP), and resorcinol bis(diphenyl phosphate) (RDP), PBAC was heated in the presence of these phosphorus compounds at 240 °C for 2 h, and the resulting polymers were analyzed by 1H NMR spectroscopy and gel permeation chromatography. When heated in the presence of TPPO, the PBAC sample decomposed extensively, resulting in a substantial decrease in molecular weight. On the other hand, thermal treatment in the presence of the phosphates increased the molecular weight. In both cases the molecular weight distribution became narrower. Thermal treatment of PBAC in the presence of both TPPO and TPP allowed us to control the molecular weight with a narrower distribution. © 2004 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 42: 1069–1074, 2004
3 citations
Patent•
25 Feb 2004
TL;DR: A brominated polyphenylene oxide having a molecular skeleton obtained by condensing tribromophenols and satisfying the requirements: (A) its 20 wt.% solution in chloroform has an absorbance at 600 nm of not larger than 0.6; (B) when 50 ml of ion-exchanged water is added to its 1.00 g/30 ml solution in dioxane, the resulting solution has an electroconductivity of not large than 10 mu S/cm measured at 25 DEG C; and (C) when a mixture comprised of
Abstract: A brominated polyphenylene oxide having a molecular skeleton obtained by condensing tribromophenols and satisfying the requirements: (A) its 20 wt.% solution in chloroform has an absorbance at 600 nm of not larger than 0.6; (B) when 50 ml of ion-exchanged water is added to its 1.00 g/30 ml solution in dioxane, the resulting solution has an electroconductivity of not larger than 10 mu S/cm measured at 25 DEG C; and (C) when a mixture comprised of 20 % by weight of the brominated polyphenylene oxide and 80 % by weight of triphenyl phosphate is heated at 280 DEG C for 20 minutes, the halide ion increase therein is not larger than 10 mu mols per gram of the brominated polyphenylene oxide, is used as a flame retardant. When it is added to resin, the resin moldings are excellent in its flame retardancy, electric properties, physical properties, thermal stability and appearance (color hue), and they do not corrode molds.
2 citations