Impact of single-particle compressibility on the fluid-solid phase transition for ionic microgel suspensions

Physical Review Letters
M Pelaez-FernandezA Fernandez-Nieves

Abstract

We study ionic microgel suspensions composed of swollen particles for various single-particle stiffnesses. We measure the osmotic pressure π of these suspensions and show that it is dominated by the contribution of free ions in solution. As this ionic osmotic pressure depends on the volume fraction of the suspension ϕ, we can determine ϕ from π, even at volume fractions so high that the microgel particles are compressed. We find that the width of the fluid-solid phase coexistence, measured using ϕ, is larger than its hard-sphere value for the stiffer microgels that we study and progressively decreases for softer microgels. For sufficiently soft microgels, the suspensions are fluidlike, irrespective of volume fraction. By calculating the dependence on ϕ of the mean volume of a microgel particle, we show that the behavior of the phase-coexistence width correlates with whether or not the microgel particles are compressed at the volume fractions corresponding to fluid-solid phase coexistence.

References

Apr 20, 2001·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·C N LikosH Löwen
Jul 23, 2004·The Journal of Chemical Physics·A Fernández-NievesA Fernández-Barbero
Aug 11, 2004·Langmuir : the ACS Journal of Surfaces and Colloids·Markus StiegerWalter Richtering
Aug 11, 2005·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Santi PrestipinoPaolo V Giaquinta
Jan 7, 2006·The Journal of Chemical Physics·Antti-Pekka Hynninen, Marjolein Dijkstra
Jun 21, 2007·The Journal of Physical Chemistry. B·Ashlee N St JohnL Andrew Lyon
Oct 13, 2007·Journal of Colloid and Interface Science·Matthew ClementsZhengdong Cheng
Aug 7, 2009·The Journal of Chemical Physics·Josep C PàmiesDaan Frenkel
Sep 29, 2011·Nature Materials·Jyoti R SethRoger T Bonnecaze
Feb 21, 2007·Journal of Physics. Condensed Matter : an Institute of Physics Journal·G Malescio
Feb 7, 2012·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Juan José Liétor-SantosAlberto Fernández-Nieves
Apr 3, 2012·The Journal of Chemical Physics·Giovanni RomeoDavid A Weitz
Jun 29, 2012·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Roberto PiazzaEleonora Secchi
Mar 13, 2014·The Journal of Chemical Physics·Priti S MohantyPeter Schurtenberger

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Citations

Apr 30, 2016·Proceedings of the National Academy of Sciences of the United States of America·Andrea ScottiAlberto Fernández-Nieves
Nov 3, 2016·The Journal of Chemical Physics·Alan R Denton, Qiyun Tang
Jun 29, 2017·ACS Nano·Pieter van der ScheerJoris Sprakel
Jun 15, 2017·Physical Chemistry Chemical Physics : PCCP·Fernando Rodríguez-DíazAileen Lozsán
Apr 30, 2015·Soft Matter·Rafael RoaGerhard Nägele
Aug 29, 2019·Small·José A Moreno-GuerraMarco Laurati
Mar 18, 2016·Soft Matter·Charlotte Pellet, Michel Cloitre
May 16, 2018·Physical Review. E·Adrian-Marie PhilippeLuca Cipelletti
Feb 17, 2018·Soft Matter·Tapomoy BhattacharjeeThomas E Angelini
Dec 14, 2018·Soft Matter·Lorenzo RovigattiEmanuela Zaccarelli
Oct 25, 2016·Soft Matter·Matthew Urich, Alan R Denton
May 10, 2018·The Journal of Chemical Physics·A ScottiW Richtering
Nov 16, 2018·Scientific Reports·Ruben Higler, Joris Sprakel
Dec 18, 2020·Physical Review. E·A ScottiW Richtering
Feb 20, 2021·Physical Review. E·A ScottiA Fernandez-Nieves
Mar 20, 2021·Physical Review. E·A ScottiW Richtering
Mar 20, 2021·Physical Review. E·Michael TennenbaumAlberto Fernandez-Nieves
Oct 30, 2021·Soft Matter·Maxime J BergmanPeter Schurtenberger

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