Abstract
Small angle neutron scattering and electron microscopy are used to investigate the ordering of soft latex particles which have been dispersed in water and then brought into contact through evaporation of the solvent. We observe a succession of metastable states where the particles are kept separated by their hydrophilic surface layers: colloidal liquid (short range order only) to colloidal crystal (long range order) to foam (dense packing of polyhedral cells with latex interior and hydrophilic walls). At each stage the structure may collapse into a homogeneous latex phase through coalescence of the particles and expulsion of the hydrophilic material.
This work used the neutron beams of ILL in Grenoble and LLB in Saclay.
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© 1990 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG
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Joanicot, M. et al. (1990). Ordering of latex particles during film formation. In: Zulauf, M., Lindner, P., Terech, P. (eds) Trends in Colloid and Interface Science IV. Progress in Colloid & Polymer Science, vol 81. Steinkopff. https://doi.org/10.1007/BFb0115548
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DOI: https://doi.org/10.1007/BFb0115548
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