| EPSRC Reference: |
GR/M72197/01 |
| Title: |
PHASE BEHAVIOUR OF COLLOIDAL PARTICLES STABILISED WITH LONG GRAFTED CHAINS |
| Principal Investigator: |
van Duijneveldt, Dr JS |
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| Department: |
Chemistry |
| Organisation: |
University of Bristol |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 1999 |
Ends: |
30 September 2002 |
Value (£): |
52,553
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| EPSRC Research Topic Classifications: |
| Complex fluids & soft solids |
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| EPSRC Industrial Sector Classifications: |
| Manufacturing |
No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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Like molecular systems, colloidal suspensions can undergo phase transitions (crystallisation for instance) and in addition they often form metastable states, such as aggregates or gels. These phenomena are relevant for the behaviour of many products, for instance paints and pharmaceutical formulations, and they are of considerable fundamental interest for understanding the behaviour of liquids in general. In this project colloidal particles stabilised in organic solvents with a thick polymeric layer will be studied. This type of particles has received little attention so far. In a good solvent, these particles have been found to order into colloidal crystals. Such crystals are of current interest because of their optical properties. The ordering transition will be investigated (mainly be light scattering) as a function of the thickness of the polymeric layer which will allow several theoretical predictions relating to this transition to be tested. Subsequently, the effect of introducing attractions between the particles, by reducing the solvent quality, on the phase behaviour will be studied. The focus will be on how the crystallisation is affected by an intervening aggregation of gelation. This is of relevance for understanding crystallisation in protein solutions, for instance.
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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.bris.ac.uk |