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Kim, So Youn
Laboratory for Soft Materials Nanophysics
Research Interests
  • Colloids, particle dispersions, polymer nanocomposite, block copolymers

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Role of Polymer Segment-Particle Surface Interactions in Controlling Nanoparticle Dispersions in Concentrated Polymer Solutions

Cited 15 times inthomson ciCited 12 times inthomson ci
Title
Role of Polymer Segment-Particle Surface Interactions in Controlling Nanoparticle Dispersions in Concentrated Polymer Solutions
Author
Kim, So YounZukoski, Charles F.
Keywords
Complex interaction; Concentrated solution; Effective contact; Long wavelength; Nano-particle dispersions; Particle densities; Particle surface; Polymer reference interaction site model; Silica nanoparticles; Small angle X-ray scattering; Small-angle neutron scattering; Surface interactions; Ternary mixtures
Issue Date
2011-09
Publisher
AMER CHEMICAL SOC
Citation
LANGMUIR, v.27, no.17, pp.10455 - 10463
Abstract
The microstructure of particles suspended in concentrated polymer solutions is examined with small-angle X-ray scattering and small-angle neutron scattering. Of interest are changes to long wavelength particle density fluctuations in ternary mixtures of silica nanoparticles suspended in concentrated solutions of poly(ethylene glycol). The results are understood in terms of application of the pseudo-two-component polymer reference interaction site model (PRISM) theory modified to account for solvent addition via effective contact strength of interfacial attraction, ε pc, in an implicit manner. The combined experimental-theoretical study emphasizes the complex interactions between solvent, polymer, and particle surface that control particle miscibility but also demonstrate that these factors can all be understood in terms of variations of ε pc.
URI
https://scholarworks.unist.ac.kr/handle/201301/6807
DOI
10.1021/la201704u
ISSN
0743-7463
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ECHE_Journal Papers
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