A novel nethod of extraction of blend component structure from SANS measurements of homopolymer bimodal blends
A new method is presented for the extraction of single chain form factors and inter-chain interference functions from a range of small angle neutron scattering (SANS) experiments on bimodal homopolymer blends. The method requires a minimum of three blends, made up of hydrogenated and deuterated comp...
| Main Authors: | , , , , |
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| Format: | Article |
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WILEY-VCH Verlag GmbH
2014
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| Online Access: | https://eprints.nottingham.ac.uk/45408/ |
| _version_ | 1848797125108826112 |
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| author | Smerdova, Olga Graham, Richard Stuart Gasser, Urs Hutchings, Lian R. De Focatiis, Davide S.A. |
| author_facet | Smerdova, Olga Graham, Richard Stuart Gasser, Urs Hutchings, Lian R. De Focatiis, Davide S.A. |
| author_sort | Smerdova, Olga |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | A new method is presented for the extraction of single chain form factors and inter-chain interference functions from a range of small angle neutron scattering (SANS) experiments on bimodal homopolymer blends. The method requires a minimum of three blends, made up of hydrogenated and deuterated components with matched degree of polymerization at two different chain lengths, but with carefully varying deuteration levels. The method is validated through an experimental study on polystyrene homopolymer bimodal blends with MA ≈ ½ MB By fitting Debye functions to the structure factors it was shown that there is good agreement between the molar mass of components obtained from SANS and from chromatography. The extraction method also enables, for the first time, to produce inter-chain scattering functions for scattering between chains of different lengths. |
| first_indexed | 2025-11-14T19:58:54Z |
| format | Article |
| id | nottingham-45408 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:58:54Z |
| publishDate | 2014 |
| publisher | WILEY-VCH Verlag GmbH |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-454082020-05-04T16:48:29Z https://eprints.nottingham.ac.uk/45408/ A novel nethod of extraction of blend component structure from SANS measurements of homopolymer bimodal blends Smerdova, Olga Graham, Richard Stuart Gasser, Urs Hutchings, Lian R. De Focatiis, Davide S.A. A new method is presented for the extraction of single chain form factors and inter-chain interference functions from a range of small angle neutron scattering (SANS) experiments on bimodal homopolymer blends. The method requires a minimum of three blends, made up of hydrogenated and deuterated components with matched degree of polymerization at two different chain lengths, but with carefully varying deuteration levels. The method is validated through an experimental study on polystyrene homopolymer bimodal blends with MA ≈ ½ MB By fitting Debye functions to the structure factors it was shown that there is good agreement between the molar mass of components obtained from SANS and from chromatography. The extraction method also enables, for the first time, to produce inter-chain scattering functions for scattering between chains of different lengths. WILEY-VCH Verlag GmbH 2014-05-02 Article PeerReviewed Smerdova, Olga, Graham, Richard Stuart, Gasser, Urs, Hutchings, Lian R. and De Focatiis, Davide S.A. (2014) A novel nethod of extraction of blend component structure from SANS measurements of homopolymer bimodal blends. Macromolecular Chemistry and Physics, 215 (9). pp. 859-866. ISSN 1521-3935 bimodal blends; polystyrene; small-angle neutron scattering (SANS) http://onlinelibrary.wiley.com/doi/10.1002/macp.201300787/abstract doi:10.1002/macp.201300787 doi:10.1002/macp.201300787 |
| spellingShingle | bimodal blends; polystyrene; small-angle neutron scattering (SANS) Smerdova, Olga Graham, Richard Stuart Gasser, Urs Hutchings, Lian R. De Focatiis, Davide S.A. A novel nethod of extraction of blend component structure from SANS measurements of homopolymer bimodal blends |
| title | A novel nethod of extraction of blend component structure from SANS measurements of homopolymer bimodal blends |
| title_full | A novel nethod of extraction of blend component structure from SANS measurements of homopolymer bimodal blends |
| title_fullStr | A novel nethod of extraction of blend component structure from SANS measurements of homopolymer bimodal blends |
| title_full_unstemmed | A novel nethod of extraction of blend component structure from SANS measurements of homopolymer bimodal blends |
| title_short | A novel nethod of extraction of blend component structure from SANS measurements of homopolymer bimodal blends |
| title_sort | novel nethod of extraction of blend component structure from sans measurements of homopolymer bimodal blends |
| topic | bimodal blends; polystyrene; small-angle neutron scattering (SANS) |
| url | https://eprints.nottingham.ac.uk/45408/ https://eprints.nottingham.ac.uk/45408/ https://eprints.nottingham.ac.uk/45408/ |