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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2001> 10(1): 45-50
LUO Ai qin, YE Ling, FU Ruo nong, XIE Gui yang, WANG Xian lun. Pyrolysis-Gas Chromatography/Mass Spectrometry for Microstructure and Pyrolysis Pathway of Polyester-Polyether Multiblock Copolymer[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2001, 10(1): 45-50.
Citation: LUO Ai qin, YE Ling, FU Ruo nong, XIE Gui yang, WANG Xian lun. Pyrolysis-Gas Chromatography/Mass Spectrometry for Microstructure and Pyrolysis Pathway of Polyester-Polyether Multiblock Copolymer[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2001, 10(1): 45-50.
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Pyrolysis-Gas Chromatography/Mass Spectrometry for Microstructure and Pyrolysis Pathway of Polyester-Polyether Multiblock Copolymer

  • 1.

    School of Chemical Engineering and Materials Science, Beijing Institute of Technology, Beijing100081, China

  • 2.

    School of Chemical Engineering and Materials Science, Beijing Institute of Technology, Beijing100081, China

  • Received Date:2000-03-28
    Abstract
  • The composition and sequence distribution of monomeric units in polyester polyether multiblock copolymer were studied by pyrolysis? gas chromatography (PGC) and pyrolysis gas chromatography/mass spectrometry (PGC/MS). PGC was applied to study the F t curve of the multiblock copolymer and PGC/MS was used to separate and identify the pyrolyzates. DTA experiment was used to study the decomposition temperature. The results show that the beginning point of elastomer's decomposition was about 300?℃ and the decomposition temperature of most of the sample was 550?℃. Many pyrolyzates were produced because of the breaking of weak bonds in the sample. The possible microstructure was verified and the pyrolysis pathway of the copolymer was investigated.
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    • References (4)
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    Hammond T,Lehrle R S.Pyrolysis2GLC applied to composition analysis,General characterizationand t he detailed specification of polymers[J] .British Polym J,1989,21:23-30.
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    Hummel D O,Dussel H J,Czybulka G,et al.Analytical pyrolysis of copolymers[J] .Spectrochimica Acta,1985,41A(1/2):279-290.
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    Luo Aiqin,Ge Bingheng,Fu Ruonong,et al.The investigation of poly(met hyl met hacrylatediallyl pht halate)gradient index materials by pyrolysis-capillary gas chromatography and pyrolysiscapillary gas chromatography/mass spectrometry[J] .J Anal Appl Pyrol,1991,21:327-334.
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