Determination of the residual monomer concentration of ε‐caprolactam in polyamide‐6 using thermogravimetric analysis coupled with Fourier transform infrared spectroscopy gas analysis
For the anionic polymerization of ε‐caprolactam to polyamide‐6 the residual monomer concentration in the final polymer is an important characteristic. To determine this residual ε‐caprolactam monomer concentration, a fast and fail‐safe method was developed, which couples thermogravimetric analysis (...
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| Veröffentlicht in: | Journal of applied polymer science 2021-08, Vol.138 (30), p.n/a |
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| container_title | Journal of applied polymer science |
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| creator | Kurt, Samet Maier, Jonas Horny, Robert Horn, Siegfried Koch, Dietmar Moosburger‐Will, Judith |
| description | For the anionic polymerization of ε‐caprolactam to polyamide‐6 the residual monomer concentration in the final polymer is an important characteristic. To determine this residual ε‐caprolactam monomer concentration, a fast and fail‐safe method was developed, which couples thermogravimetric analysis (TGA) with Fourier transform infrared spectroscopy (FTIR) gas analysis. FTIR allows an identification of the types of gasses released during heat treatment. Calibration of the infrared absorbance of ε‐caprolactam and the corresponding mass loss in TGA allows a quantitative evaluation of the ε‐caprolactam monomer release. Low‐heating rates and powdery samples guarantee high‐precision measurements. |
| doi_str_mv | 10.1002/app.50730 |
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To determine this residual ε‐caprolactam monomer concentration, a fast and fail‐safe method was developed, which couples thermogravimetric analysis (TGA) with Fourier transform infrared spectroscopy (FTIR) gas analysis. FTIR allows an identification of the types of gasses released during heat treatment. Calibration of the infrared absorbance of ε‐caprolactam and the corresponding mass loss in TGA allows a quantitative evaluation of the ε‐caprolactam monomer release. 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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Anionic polymerization Caprolactam Fourier transforms Gas analysis Heat treatment Infrared analysis Infrared spectroscopy Materials science Monomers Polyamide resins polyamides Polymers ring‐opening polymerization Spectroscopic analysis spectroscopy Spectrum analysis Thermogravimetric analysis thermoplastics |
| title | Determination of the residual monomer concentration of ε‐caprolactam in polyamide‐6 using thermogravimetric analysis coupled with Fourier transform infrared spectroscopy gas analysis |
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