EPSRC logo

Details of Grant 

EPSRC Reference: GR/M72197/01
Title: PHASE BEHAVIOUR OF COLLOIDAL PARTICLES STABILISED WITH LONG GRAFTED CHAINS
Principal Investigator: van Duijneveldt, Dr JS
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department: Chemistry
Organisation: University of Bristol
Scheme: Standard Research (Pre-FEC)
Starts: 01 October 1999 Ends: 30 September 2002 Value (£): 52,553
EPSRC Research Topic Classifications:
Complex fluids & soft solids
EPSRC Industrial Sector Classifications:
Manufacturing No relevance to Underpinning Sectors
Related Grants:
Panel History:  
Summary on Grant Application Form
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.
Key Findings
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Potential use in non-academic contexts
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Impacts
Description This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Summary
Date Materialised
Sectors submitted by the Researcher
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Project URL:  
Further Information:  
Organisation Website: http://www.bris.ac.uk