Diffusion of compact macromolecules through polymer meshes

Mesh dynamics and probe dynamics

R. Biehl, X. Guo, Robert Krafft Prud'homme, M. Monkenbusch, J. Allgeier, D. Richter

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The diffusion of compact macromolecules in polymer networks is examined to understand how polymer networks or gels could be used to filter different types of macromolecules. We present new measurements of the network and probe dynamics by neutron spin-echo spectroscopy (NSE). The investigated system consists of the protein α-lactalbumin (Rg = 15.2Å) as probe and a network of high molecular weight polyethylenoxide. The high molecular weight ensures a long disentanglement time for the polymer in order to create a stable network. We compare the network dynamics and the dynamics of the probe protein in the network at different mesh sizes. We study the dynamics at different q values between 0.03 and 0.22Å-1. The corresponding length scales reach from distances smaller than the mesh size to larger than the mesh size.

Original languageEnglish (US)
Pages (from-to)76-78
Number of pages3
JournalPhysica B: Condensed Matter
Volume350
Issue number1-3
DOIs
StatePublished - Jul 30 2004

Fingerprint

Macromolecules
macromolecules
mesh
Polymers
probes
polymers
Molecular weight
Proteins
Lactalbumin
molecular weight
Neutrons
Gels
proteins
Spectroscopy
echoes
gels
filters
neutrons
spectroscopy

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Biehl, R. ; Guo, X. ; Prud'homme, Robert Krafft ; Monkenbusch, M. ; Allgeier, J. ; Richter, D. / Diffusion of compact macromolecules through polymer meshes : Mesh dynamics and probe dynamics. In: Physica B: Condensed Matter. 2004 ; Vol. 350, No. 1-3. pp. 76-78.
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Diffusion of compact macromolecules through polymer meshes : Mesh dynamics and probe dynamics. / Biehl, R.; Guo, X.; Prud'homme, Robert Krafft; Monkenbusch, M.; Allgeier, J.; Richter, D.

In: Physica B: Condensed Matter, Vol. 350, No. 1-3, 30.07.2004, p. 76-78.

Research output: Contribution to journalArticle

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