Four new phosphonate-epoxy monomers were synthesized and characterized by H-1 and P-31-NMR, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), thermal gravimetric analysis (TGA), and differential scanning calorimetry (DSC) tools. Beside the expected compund, the formation of a small amounts of linear oligomers was also observed by MALDI-TOF MS. These monomers were used to prepare new phosphorus-containing epoxy resins in order to obtain potential flame retardant polymers. The thermal behavior of these new epoxy resin was studied by DSC, TGA, and direct pyrolysis mass spectrometry (DPMS). TGA and DPMS data show that either the maximum decomposition temperature (PDT) or the onset of the thermal degradation of the phosphorus-containing epoxy resins is lower than that of the corresponding nonphosphonate samples.
Four new phosphonate-epoxy monomers were synthesized and characterized by H-1 and P-31-NMR, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), thermal gravimetric analysis (TGA), and differential scanning calorimetry (DSC) tools. Beside the expected compund, the formation of a small amounts of linear oligomers was also observed by MALDI-TOF MS. These monomers were used to prepare new phosphorus-containing epoxy resins in order to obtain potential flame retardant polymers. The thermal behavior of these new epoxy resin was studied by DSC, TGA, and direct pyrolysis mass spectrometry (DPMS). TGA and DPMS data show that either the maximum decomposition temperature (PDT) or the onset of the thermal degradation of the phosphorus-containing epoxy resins is lower than that of the corresponding nonphosphonate samples.
SYNTHESIS, CHARACTERIZATION, AND PROPERTIES OF NEW PHOSPHORUS-CONTAINING EPOXY RESINS
FAILLA, Salvatore;CONSIGLIO, GIUSEPPE;
2011-01-01
Abstract
Four new phosphonate-epoxy monomers were synthesized and characterized by H-1 and P-31-NMR, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), thermal gravimetric analysis (TGA), and differential scanning calorimetry (DSC) tools. Beside the expected compund, the formation of a small amounts of linear oligomers was also observed by MALDI-TOF MS. These monomers were used to prepare new phosphorus-containing epoxy resins in order to obtain potential flame retardant polymers. The thermal behavior of these new epoxy resin was studied by DSC, TGA, and direct pyrolysis mass spectrometry (DPMS). TGA and DPMS data show that either the maximum decomposition temperature (PDT) or the onset of the thermal degradation of the phosphorus-containing epoxy resins is lower than that of the corresponding nonphosphonate samples.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
