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Poor-solvent polyelectrolytes

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons48054

Holm,  Christian
MPI for Polymer Research, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons48313

Limbach,  H. J.
MPI for Polymer Research, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons48227

Kremer,  Kurt
MPI for Polymer Research, Max Planck Society;

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Zitation

Holm, C., Limbach, H. J., & Kremer, K. (2003). Poor-solvent polyelectrolytes. Journal of Physics-Condensed Matter, 15(1 Sp. Iss. SI), S205-S211.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-62A7-2
Zusammenfassung
Using extensive molecular dynamics simulations we study the behaviour of polyelectrolytes (PEs) in poor solvents, explicitly taking the counterions into account. The resulting pearl-necklace structures are subject to strong conformational fluctuations. These lead to small signatures in the form factor and the force-extension relation, which is a severe obstacle to experimental observations. In addition, we study how the necklace collapses as a function of the Bjerrum length. Finally, we demonstrate that the position of the first peak in the inter-chain structure factor varies with the monomer density as approximate top(m)(0.35) for all densities, which shows a pertinent different behaviour as compared to that of PE solutions in good solvent.