| EPSRC Reference: |
GR/N01958/01 |
| Title: |
AN INVESTIGATION OF SEMICRYSTALLINITY IN POLYMERS USING LABELLED AND STAR-BRANCHED LONG ALKANES |
| Principal Investigator: |
Ungar, Professor G |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Materials Science and Engineering |
| Organisation: |
University of Sheffield |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
07 July 2000 |
Ends: |
06 July 2003 |
Value (£): |
157,129
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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| EPSRC Industrial Sector Classifications: |
| Manufacturing |
Chemicals |
| Electronics |
No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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Studies of long monodisperse normal alkanes have had a major impact on the field of polymer crystallization and morphology. This proposal is part of a joint programme by the Universities of Durham, Sheffield, Sheffield Hallam and Nottingham with the aim of extending the scope of these studies using our joint expertise in chemical synthesis and physical characterisation. The Durham group has already successfully synthesised a number of the alkanes necessary for the research proposed here. The insertion of chemical probes will allow the application of a broad range of experimental techniques to recently discovered, while the introduction of new molecular architectures will result in entirely new morphologies. For example, to investigate the relative stability of the semicrystalline (crystalline-amorphous) double layer and produce new double and triple-layer superlattices, different three-branch (Y-shaped) alkanes will be studied. In order to complement SAXS and Raman LAM studies, two linear and one branched alkane have been end-capped with C12D25 labels for neutron scattering, NMR and IR experiments designed to probe the location, conformation, mobility and the environment of chain ends. This research will provide answers to a number of questions regarding chain folding, ciliation, crystalline-amorphous interface, surface roughness, chain tilt etc.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.shef.ac.uk |