TY - JOUR
T1 - Characterization of poly(butylene terephthalate) by size-exclusion chromatography and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry
AU - Lou, X.W.
AU - Dongen, van, J.L.J.
AU - Janssen, H.M.
AU - Lange, R.F.M.
PY - 2002
Y1 - 2002
N2 - Poly(butylene terephthalate) (PBT) samples have been analyzed with size-exclusion chromatography (SEC) using a mixed solvent of 1,1,1,3,3,3-hexafluoroisopropanol (HFIP) and chloroform as the mobile phase. Several matrices and different sample deposition methods have been investigated to analyze PBT with matrix-assisted laser desorption / ionization (MALDI) time-of-flight (TOF) mass spectrometry (MS). Optimum results have been acquired by depositing PBT on top of a 2,4,6-trihydroxyacetophenone matrix. The found MALDI-TOF-MS method can be used to analyze the end group functionalities of PBT, as demonstrated with the samples at hand. By combining SEC (off-line) with MALDI-TOF-MS, absolute molecular masses of PBT can be measured, and these have been found to be considerably lower than those determined with SEC using polystyrene standards.
AB - Poly(butylene terephthalate) (PBT) samples have been analyzed with size-exclusion chromatography (SEC) using a mixed solvent of 1,1,1,3,3,3-hexafluoroisopropanol (HFIP) and chloroform as the mobile phase. Several matrices and different sample deposition methods have been investigated to analyze PBT with matrix-assisted laser desorption / ionization (MALDI) time-of-flight (TOF) mass spectrometry (MS). Optimum results have been acquired by depositing PBT on top of a 2,4,6-trihydroxyacetophenone matrix. The found MALDI-TOF-MS method can be used to analyze the end group functionalities of PBT, as demonstrated with the samples at hand. By combining SEC (off-line) with MALDI-TOF-MS, absolute molecular masses of PBT can be measured, and these have been found to be considerably lower than those determined with SEC using polystyrene standards.
U2 - 10.1016/S0021-9673%2802%2901149-4
DO - 10.1016/S0021-9673%2802%2901149-4
M3 - Article
VL - 976
SP - 145
EP - 154
JO - Journal of Chromatography, A
JF - Journal of Chromatography, A
SN - 0021-9673
IS - 1-2
ER -