| Téléchargement | - Voir le manuscrit accepté : Reactions of sulfur dioxide with oxidized polyolefins (PDF, 1,0 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1016/0141-3910(86)90005-4 |
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| Auteur | Rechercher : Carlsson, D. J.1; Rechercher : Brousseau, R.1; Rechercher : Wiles, D. M.1 |
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| Affiliation | - Conseil national de recherches Canada
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| Format | Texte, Article |
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| Résumé | The reactions of gaseous sulfur dioxide with partially oxidized polypropylene and polyethylene have been investigated by iodometry and by Fourier Transform Infra-red ( FTIR) spectroscopy. Comparison was also made with chemical changes observed in model liquid hydroperoxides which were analysed by FTIR, nmr and ultraviolet-visible, spectroscopies. Reaction of macro- and model hydroperoxide groups with SO₂ proceeds by two consecutive reactions which occur in varying proportions depending upon the SO₂/hydroperoxide ratio. Because of this, the use of the SO₂ reaction products detected by infra-red (believed to be hydrosulfates) to quantify hydroperoxide is unreliable and gives little improvement in detection level over direct measurement of hydroperoxide by infra-red. Exposure to SO₂ and then gaseous ammonia produces some ammonium sulfate from hydroperoxide groups. The ammonium sulfate can be detected with high sensitivity by infra-red, but the stoichiometry of its generation is again variable. |
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| Date de publication | 1986 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro du CNRC | NRCC 25435 |
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| Numéro NPARC | 15657369 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | b9021bc2-bbfd-4585-b4f9-7927d2d658cf |
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| Enregistrement créé | 2010-06-11 |
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| Enregistrement modifié | 2020-05-08 |
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