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 (pyrolysis percentage-temperature) 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 result show that the beginning point of elastomer's decomposition was about 300°C and the decomposition temperature for most of the sample was 550°C. Many pyrolyzates were produced because of the breaking of weak chemical bonds in the sample. The elastomer's microstructure was verified and the pyrolysis pathway of the copolymer was investigated.
| Original language | English |
|---|---|
| Pages (from-to) | 45-50 |
| Number of pages | 6 |
| Journal | Journal of Beijing Institute of Technology (English Edition) |
| Volume | 10 |
| Issue number | 1 |
| Publication status | Published - Mar 2001 |
Keywords
- Copolymer
- Microstructure
- Polyester-polyether multiblock copolymer
- Pyrolysis pathway
- Pyrolysis-gas chromatography/mass spectrometry
- Pyrolyzates
- Thermoplastic elastomer