Small-Angle Neutron Scattering on a Core-Shell Colloidal System: A Contrast Variation Study
Zackrisson Oskolkova, Malin LU ; Stradner, Anna LU ; Schurtenberger, Peter LU
and Bergenholtz, Johan
(2005)
In Langmuir
21(23).
p.10835-10845
- Abstract
- Small-angle neutron scattering (SANS) measurements are reported on a sterically stabilized, coreshell
colloidal system using contrast variation. Aqueous dispersions of polystyrene particles bearing grafted
poly(ethylene glycol) (PEG) have been studied over a large range of particle concentrations and two different
solvent conditions for the PEG polymer. SANS data are analyzed quantitatively by modeling the particles
as core-shell colloids. In a good solvent and under particle contrast conditions, an effective hard-sphere
interaction captures excluded-volume interactions up to high concentrations. Contrast variation, through
isotopic substitution of both the core and solvent, expedite a... (More) - Small-angle neutron scattering (SANS) measurements are reported on a sterically stabilized, coreshell
colloidal system using contrast variation. Aqueous dispersions of polystyrene particles bearing grafted
poly(ethylene glycol) (PEG) have been studied over a large range of particle concentrations and two different
solvent conditions for the PEG polymer. SANS data are analyzed quantitatively by modeling the particles
as core-shell colloids. In a good solvent and under particle contrast conditions, an effective hard-sphere
interaction captures excluded-volume interactions up to high concentrations. Contrast variation, through
isotopic substitution of both the core and solvent, expedite a detailed study of the PEG layer, both in the
dilute limit and as a function of the particle concentration. Upon diminishing the solvent quality, subtle
changes in the PEG layer translate into attractions among particles of moderate magnitude (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3363713
- author
- Zackrisson Oskolkova, Malin
LU
; Stradner, Anna
LU
; Schurtenberger, Peter
LU
and Bergenholtz, Johan
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Small-angle neutron scattering, core-shell particles, contrast-variation, PEG layer, grafted
- in
- Langmuir
- volume
- 21
- issue
- 23
- pages
- 10835 - 10845
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- scopus:28044444322
- ISSN
- 0743-7463
- DOI
- 10.1021/la051664v
- language
- English
- LU publication?
- no
- id
- 52acab03-8952-41ba-92d0-d177aa8cf2d1 (old id 3363713)
- date added to LUP
- 2016-04-01 12:08:34
- date last changed
- 2022-01-26 23:25:14
@article{52acab03-8952-41ba-92d0-d177aa8cf2d1,
abstract = {{Small-angle neutron scattering (SANS) measurements are reported on a sterically stabilized, coreshell<br/><br>
colloidal system using contrast variation. Aqueous dispersions of polystyrene particles bearing grafted<br/><br>
poly(ethylene glycol) (PEG) have been studied over a large range of particle concentrations and two different<br/><br>
solvent conditions for the PEG polymer. SANS data are analyzed quantitatively by modeling the particles<br/><br>
as core-shell colloids. In a good solvent and under particle contrast conditions, an effective hard-sphere<br/><br>
interaction captures excluded-volume interactions up to high concentrations. Contrast variation, through<br/><br>
isotopic substitution of both the core and solvent, expedite a detailed study of the PEG layer, both in the<br/><br>
dilute limit and as a function of the particle concentration. Upon diminishing the solvent quality, subtle<br/><br>
changes in the PEG layer translate into attractions among particles of moderate magnitude}},
author = {{Zackrisson Oskolkova, Malin and Stradner, Anna and Schurtenberger, Peter and Bergenholtz, Johan}},
issn = {{0743-7463}},
keywords = {{Small-angle neutron scattering; core-shell particles; contrast-variation; PEG layer; grafted}},
language = {{eng}},
number = {{23}},
pages = {{10835--10845}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Langmuir}},
title = {{Small-Angle Neutron Scattering on a Core-Shell Colloidal System: A Contrast Variation Study}},
url = {{http://dx.doi.org/10.1021/la051664v}},
doi = {{10.1021/la051664v}},
volume = {{21}},
year = {{2005}},
}