Entropic wetting and the fluid-fluid interface of a model colloid-polymer mixture Export

@article{brader.evans.ea:2002, abstract = {A recent density functional theory is used to investigate the free interface between demixed fluid phases in a model colloid-polymer mixture. Both the colloid and polymer density profiles oscillate on the colloid-rich side of the interface, provided the polymer reservoir packing fraction epr is sufficiently high. Results for the surface tension are in reasonable agreement with experiment. When the mixture is adsorbed against a hard wall, entropic depletion effects give rise to a wetting transition whereby the colloid-rich phase wets completely. Prior to complete wetting we find three layering transitions, the first of which extends far into the single-phase region. This pattern of surface phase transitions is very different from that observed for simple one-component fluids at planar substrates.}, author = {Brader, J. M. and Evans, R. and Schmidt, M. and L\"{o}wen, H.}, citeulike-article-id = {4860298}, citeulike-linkout-0 = {http://dx.doi.org/10.1088/0953-8984/14/1/101}, doi = {10.1088/0953-8984/14/1/101}, journal = {Journal of Physics: Condensed Matter}, keywords = {colloid\_polymer\_mixture, confined\_fluids}, number = {1}, pages = {L1--L8}, posted-at = {2009-06-15 14:58:09}, priority = {2}, title = {Entropic wetting and the fluid-fluid interface of a model colloid-polymer mixture}, url = {http://dx.doi.org/10.1088/0953-8984/14/1/101}, volume = {14}, year = {2002} }

TY - JOUR ID - brader.evans.ea:2002 L3 - citeulike-article-id:4860298 N2 - A recent density functional theory is used to investigate the free interface between demixed fluid phases in a model colloid-polymer mixture. Both the colloid and polymer density profiles oscillate on the colloid-rich side of the interface, provided the polymer reservoir packing fraction epr is sufficiently high. Results for the surface tension are in reasonable agreement with experiment. When the mixture is adsorbed against a hard wall, entropic depletion effects give rise to a wetting transition whereby the colloid-rich phase wets completely. Prior to complete wetting we find three layering transitions, the first of which extends far into the single-phase region. This pattern of surface phase transitions is very different from that observed for simple one-component fluids at planar substrates. IS - 1 JF - Journal of Physics: Condensed Matter EP - L8 TI - Entropic wetting and the fluid-fluid interface of a model colloid-polymer mixture VL - 14 SP - L1 KW - colloid_polymer_mixture KW - confined_fluids AU - Brader, JM AU - Evans, R AU - Schmidt, M AU - Löwen, H PY - 2002/// UR - http://dx.doi.org/10.1088/0953-8984/14/1/101 ER -