Controlled nanoparticle formation by diffusion limited coalescence

R. Stepanyan, J.G.J.L. Lebouille, J.J.M. Slot, R. Tuinier, M.A. Cohen Stuart

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19 Citaties (Scopus)

Uittreksel

Polymeric nanoparticles (NPs) have great application potential in science and technology. Their functionality strongly depends on their size. We present a theory for the size of NPs formed by precipitation of polymers into a bad solvent in the presence of a stabilizing surfactant. The analytical theory is based upon diffusion-limited coalescence kinetics of the polymers. Two relevant time scales, a mixing and a coalescence time, are identified and their ratio is shown to determine the final NP diameter. The size is found to scale in a universal manner and is predominantly sensitive to the mixing time and the polymer concentration if the surfactant concentration is sufficiently high. The model predictions are in good agreement with experimental data. Hence the theory provides a solid framework for tailoring NPs with a priori determined size.
TaalEngels
Artikelnummer138301
Pagina's1-5
TijdschriftPhysical Review Letters
Volume109
Nummer van het tijdschrift13
DOI's
StatusGepubliceerd - 2012

Vingerafdruk

coalescing
nanoparticles
polymers
surfactants
kinetics
predictions

Citeer dit

Stepanyan, R., Lebouille, J. G. J. L., Slot, J. J. M., Tuinier, R., & Cohen Stuart, M. A. (2012). Controlled nanoparticle formation by diffusion limited coalescence. Physical Review Letters, 109(13), 1-5. [138301]. DOI: 10.1103/PhysRevLett.109.138301
Stepanyan, R. ; Lebouille, J.G.J.L. ; Slot, J.J.M. ; Tuinier, R. ; Cohen Stuart, M.A./ Controlled nanoparticle formation by diffusion limited coalescence. In: Physical Review Letters. 2012 ; Vol. 109, Nr. 13. blz. 1-5
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Stepanyan, R, Lebouille, JGJL, Slot, JJM, Tuinier, R & Cohen Stuart, MA 2012, 'Controlled nanoparticle formation by diffusion limited coalescence' Physical Review Letters, vol. 109, nr. 13, 138301, blz. 1-5. DOI: 10.1103/PhysRevLett.109.138301

Controlled nanoparticle formation by diffusion limited coalescence. / Stepanyan, R.; Lebouille, J.G.J.L.; Slot, J.J.M.; Tuinier, R.; Cohen Stuart, M.A.

In: Physical Review Letters, Vol. 109, Nr. 13, 138301, 2012, blz. 1-5.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

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AB - Polymeric nanoparticles (NPs) have great application potential in science and technology. Their functionality strongly depends on their size. We present a theory for the size of NPs formed by precipitation of polymers into a bad solvent in the presence of a stabilizing surfactant. The analytical theory is based upon diffusion-limited coalescence kinetics of the polymers. Two relevant time scales, a mixing and a coalescence time, are identified and their ratio is shown to determine the final NP diameter. The size is found to scale in a universal manner and is predominantly sensitive to the mixing time and the polymer concentration if the surfactant concentration is sufficiently high. The model predictions are in good agreement with experimental data. Hence the theory provides a solid framework for tailoring NPs with a priori determined size.

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Stepanyan R, Lebouille JGJL, Slot JJM, Tuinier R, Cohen Stuart MA. Controlled nanoparticle formation by diffusion limited coalescence. Physical Review Letters. 2012;109(13):1-5. 138301. Beschikbaar vanaf, DOI: 10.1103/PhysRevLett.109.138301