Viscoelasticity of Depletion-Induced Gels in Emulsion-Polymer Systems

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1999
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Meller, Anton
Weitz, David A.
Stavans, Joel
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Langmuir. 1999, 15(6), pp. 1918-1922. Available under: doi: 10.1021/la9812424
Zusammenfassung

Using rheometry and light scattering, we have studied the viscoelasticity of gels formed by the kinetically arrested phase separation in an emulsion-polymer mixture; to prevent the gels from collapsing under their own weight, we have used an isopycnic solvent. At constant osmotic pressure (set by the polymer concentration) and droplet volume fractions ø well above the gelation transition, we find the elastic modulus to increase roughly linearly with ø, indicating an entropic elasticity based on the cluster packing.

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ISO 690MELLER, Anton, Thomas GISLER, David A. WEITZ, Joel STAVANS, 1999. Viscoelasticity of Depletion-Induced Gels in Emulsion-Polymer Systems. In: Langmuir. 1999, 15(6), pp. 1918-1922. Available under: doi: 10.1021/la9812424
BibTex
@article{Meller1999Visco-4734,
  year={1999},
  doi={10.1021/la9812424},
  title={Viscoelasticity of Depletion-Induced Gels in Emulsion-Polymer Systems},
  number={6},
  volume={15},
  journal={Langmuir},
  pages={1918--1922},
  author={Meller, Anton and Gisler, Thomas and Weitz, David A. and Stavans, Joel}
}
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