| DOI | Trouver le DOI : https://doi.org/10.1016/j.physb.2006.05.295 |
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| Auteur | Rechercher : Tun, Z.1; Rechercher : Unsworth, L. D.; Rechercher : Brash, J. L.; Rechercher : Sheardown, H. |
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| Affiliation | - Conseil national de recherches Canada. Centre canadien de faisceaux de neutrons du CNRC
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| Format | Texte, Article |
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| Sujet | Graft density; polyethylene oxide; chemisorbed PEO; end-tethered polymer |
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| Résumé | Determining the graft density of polymers adsorbed on a substrate from neutron scattering-length density profile can be challenging. A scheme based on integrating a select region of the profile is proposed and applied to results obtained from a recent neutron reflectometry experiment that investigated the physical properties of polyethylene oxide (PEO) chemisorbed onto a gold-coated Si substrate. Reflectivity measurements were performed with the PEO exposed to a H₂O/D₂O mixture contrast matched to the underlying gold. The graft density obtained by the integration technique is 60% higher than the value determined using scaling relations. |
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| Date de publication | 2006-07-25 |
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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 | 103 |
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| Numéro NPARC | 12333642 |
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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 | 81cff361-07ac-44f6-a14d-143ed7da2509 |
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| Enregistrement créé | 2009-09-10 |
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| Enregistrement modifié | 2020-04-22 |
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