A novel treatment and derivatization for quantification of residual aromatic diisocyanates in polyamide resins
Abstract In the scientific context, the environmental and healthy impact of polymers is more related to the residual monomer content rather than their macromolecular structure, due to the monomer capability to interact with membrane cells. For this a novel method to stabilize and quantify residual m...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-07-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-17316-7 |
| _version_ | 1818015129798705152 |
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| author | Genny Pastore Serena Gabrielli Ezio Leone Manuela Cortese Dario Gentili Giovanna Biondi Enrico Marcantoni |
| author_facet | Genny Pastore Serena Gabrielli Ezio Leone Manuela Cortese Dario Gentili Giovanna Biondi Enrico Marcantoni |
| author_sort | Genny Pastore |
| collection | DOAJ |
| description | Abstract In the scientific context, the environmental and healthy impact of polymers is more related to the residual monomer content rather than their macromolecular structure, due to the monomer capability to interact with membrane cells. For this a novel method to stabilize and quantify residual monomeric isocyanates in high thermal resistance polyamide resins (PAs) has been developed. This new analytical method resulted in an improvement concerning the quantification of residual aromatic diisocyanates in viscous polymeric matrices by using a simple and cheap technique like HPLC-VWD. Diisocyanate monomers were derivatized with dibutylamine, resulting in stable urea derivatives that were simultaneously analysed and quantified. The method was applied to solvent-based polyamide resins, used as primary electrical insulation, for avoiding additional step of solvent removing before the analysis. The quantification of residual monomers answers to the provisions imposed by European Regulation N. 1907/2006 (REACH) for polymer registration, and the necessity of an early evaluation of the occupational risk associated with the use of diisocyanates, due to their toxicity and high reactivity towards moisture. |
| first_indexed | 2024-04-14T06:52:56Z |
| format | Article |
| id | doaj.art-061f7f20adf04e5b85a4b06c1c23a4fa |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-14T06:52:56Z |
| publishDate | 2022-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-061f7f20adf04e5b85a4b06c1c23a4fa2022-12-22T02:06:58ZengNature PortfolioScientific Reports2045-23222022-07-011211710.1038/s41598-022-17316-7A novel treatment and derivatization for quantification of residual aromatic diisocyanates in polyamide resinsGenny Pastore0Serena Gabrielli1Ezio Leone2Manuela Cortese3Dario Gentili4Giovanna Biondi5Enrico Marcantoni6School of Science and Technology, University of CamerinoSchool of Science and Technology, University of CamerinoSchool of Science and Technology, University of CamerinoSchool of Science and Technology, University of CamerinoSchool of Science and Technology, University of CamerinoElantas Europe S.R.L., Altana Group DESchool of Science and Technology, University of CamerinoAbstract In the scientific context, the environmental and healthy impact of polymers is more related to the residual monomer content rather than their macromolecular structure, due to the monomer capability to interact with membrane cells. For this a novel method to stabilize and quantify residual monomeric isocyanates in high thermal resistance polyamide resins (PAs) has been developed. This new analytical method resulted in an improvement concerning the quantification of residual aromatic diisocyanates in viscous polymeric matrices by using a simple and cheap technique like HPLC-VWD. Diisocyanate monomers were derivatized with dibutylamine, resulting in stable urea derivatives that were simultaneously analysed and quantified. The method was applied to solvent-based polyamide resins, used as primary electrical insulation, for avoiding additional step of solvent removing before the analysis. The quantification of residual monomers answers to the provisions imposed by European Regulation N. 1907/2006 (REACH) for polymer registration, and the necessity of an early evaluation of the occupational risk associated with the use of diisocyanates, due to their toxicity and high reactivity towards moisture.https://doi.org/10.1038/s41598-022-17316-7 |
| spellingShingle | Genny Pastore Serena Gabrielli Ezio Leone Manuela Cortese Dario Gentili Giovanna Biondi Enrico Marcantoni A novel treatment and derivatization for quantification of residual aromatic diisocyanates in polyamide resins Scientific Reports |
| title | A novel treatment and derivatization for quantification of residual aromatic diisocyanates in polyamide resins |
| title_full | A novel treatment and derivatization for quantification of residual aromatic diisocyanates in polyamide resins |
| title_fullStr | A novel treatment and derivatization for quantification of residual aromatic diisocyanates in polyamide resins |
| title_full_unstemmed | A novel treatment and derivatization for quantification of residual aromatic diisocyanates in polyamide resins |
| title_short | A novel treatment and derivatization for quantification of residual aromatic diisocyanates in polyamide resins |
| title_sort | novel treatment and derivatization for quantification of residual aromatic diisocyanates in polyamide resins |
| url | https://doi.org/10.1038/s41598-022-17316-7 |
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