Phase behaviour of colloids plus weakly adhesive polymers
(2016) In European Physical Journal E. Soft Matter 39(11).- Abstract
Abstract.: The phase behaviour of a colloidal dispersion mediated by weakly adhesive polymers is considered. The polymers are depleted but are weakly adhesive and hence comprise a non-zero polymer concentration at the colloid’s surface, in contrast to the classical assumption in depletion theories involving a zero polymer concentration at the surface. The theory is composed of a generalized free-volume theory for colloid-polymer mixtures and a self-consistent mean-field theory for polymers at surfaces. It is found that the weak adhesion of the polymers shifts the phase stability of the colloid-polymer mixtures to higher polymer concentrations as compared to assuming a full depletion effect. The predicted phase diagrams employing the new... (More)
Abstract.: The phase behaviour of a colloidal dispersion mediated by weakly adhesive polymers is considered. The polymers are depleted but are weakly adhesive and hence comprise a non-zero polymer concentration at the colloid’s surface, in contrast to the classical assumption in depletion theories involving a zero polymer concentration at the surface. The theory is composed of a generalized free-volume theory for colloid-polymer mixtures and a self-consistent mean-field theory for polymers at surfaces. It is found that the weak adhesion of the polymers shifts the phase stability of the colloid-polymer mixtures to higher polymer concentrations as compared to assuming a full depletion effect. The predicted phase diagrams employing the new theory are consistent with experiments on mixtures of silica spheres coated with stearyl alcohol and polydimethylsiloxane in cyclohexane and with Monte Carlo simulation results. Graphical abstract: [Figure not available: see fulltext.]
(Less)
- author
- Tuinier, R. ; Ouhajji, S. and Linse, P. LU
- organization
- publishing date
- 2016-11-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Soft Matter: Colloids and Nanoparticles
- in
- European Physical Journal E. Soft Matter
- volume
- 39
- issue
- 11
- article number
- 115
- publisher
- Springer
- external identifiers
-
- scopus:84999176926
- pmid:27896499
- wos:000397406200001
- ISSN
- 1292-8941
- DOI
- 10.1140/epje/i2016-16115-5
- language
- English
- LU publication?
- yes
- id
- 809e66c5-2010-4ac3-bea8-01de86370388
- date added to LUP
- 2016-12-19 13:26:41
- date last changed
- 2024-03-07 18:51:35
@article{809e66c5-2010-4ac3-bea8-01de86370388,
abstract = {{<p>Abstract.: The phase behaviour of a colloidal dispersion mediated by weakly adhesive polymers is considered. The polymers are depleted but are weakly adhesive and hence comprise a non-zero polymer concentration at the colloid’s surface, in contrast to the classical assumption in depletion theories involving a zero polymer concentration at the surface. The theory is composed of a generalized free-volume theory for colloid-polymer mixtures and a self-consistent mean-field theory for polymers at surfaces. It is found that the weak adhesion of the polymers shifts the phase stability of the colloid-polymer mixtures to higher polymer concentrations as compared to assuming a full depletion effect. The predicted phase diagrams employing the new theory are consistent with experiments on mixtures of silica spheres coated with stearyl alcohol and polydimethylsiloxane in cyclohexane and with Monte Carlo simulation results. Graphical abstract: [Figure not available: see fulltext.]</p>}},
author = {{Tuinier, R. and Ouhajji, S. and Linse, P.}},
issn = {{1292-8941}},
keywords = {{Soft Matter: Colloids and Nanoparticles}},
language = {{eng}},
month = {{11}},
number = {{11}},
publisher = {{Springer}},
series = {{European Physical Journal E. Soft Matter}},
title = {{Phase behaviour of colloids plus weakly adhesive polymers}},
url = {{http://dx.doi.org/10.1140/epje/i2016-16115-5}},
doi = {{10.1140/epje/i2016-16115-5}},
volume = {{39}},
year = {{2016}},
}