| DOI | Resolve DOI: https://doi.org/10.1016/j.physb.2006.05.295 |
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| Author | Search for: Tun, Z.1; Search for: Unsworth, L. D.; Search for: Brash, J. L.; Search for: Sheardown, H. |
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| Affiliation | - National Research Council of Canada. NRC Canadian Neutron Beam Centre
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| Format | Text, Article |
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| Subject | Graft density; polyethylene oxide; chemisorbed PEO; end-tethered polymer |
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| Abstract | 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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| Publication date | 2006-07-25 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | 103 |
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| NPARC number | 12333642 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 81cff361-07ac-44f6-a14d-143ed7da2509 |
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| Record created | 2009-09-10 |
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| Record modified | 2020-04-22 |
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