| EPSRC Reference: |
GR/J44940/01 |
| Title: |
STUDIES OF TIME-DEPENDENT DIELECTRIC PROPERTIES OF NON-STATIONARY POLYMER SYSTEMS |
| Principal Investigator: |
Williams, Professor G |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Chemistry |
| Organisation: |
Swansea University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 1993 |
Ends: |
30 September 1996 |
Value (£): |
188,847
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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Summary on Grant Application Form |
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Real-time dielectric relaxation spectroscopy (DRS) of time-dependent polymer systems will be studied using a modern dielectric spectrometer to be provided under this grant. The main research programme will be the study of bulk uncatalysed and catalysed thermosetting reactions of epoxide-amine mixtures and bulk-addition polymerisations (thermal and photochemical) of diacrylate monomers. Studies will also be made using real-time DRS of the dynamics of phase separation in PVME/PStyrene blends, of crystallisation in amorphous polyesters and volume-relaxation phenomena in poly(vinyl acetate). Importantly, the kinetics of the thermosetting reactions will be studied, in parallel, using dsc and a comparison of the DRS and dsc data will provide the required correlations between molecular dynamics and chemical kinetics as a reaction proceeds to its diffusion-controlled limit. Special emphasis will be placed on theoretical analysis of data using phenomenological and molecular theories of reactions and relaxation behaviour. The applications of the real-time DRS method to these systems will be demonstrated and will lead to collaborative researches with other scientists in the UK using the equipment provided by the grant.
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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.swan.ac.uk |