Diffusion of Confined Polymer Chains

Abstract:

Simple lattice model of polymer systems was developed and studied using the Monte Carlo method. The model chains were star-branched with f = 3 arms and rings. The number of polymer segments in a chain was varied up to 800. The chains were built on a simple cubic lattice with the excluded volume interactions only (the athermal system). The polymers were confined between two parallel impenetrable walls with a set of irregular obstacles what can be treated as porous media. A Metropolis-like sampling algorithm employing local changes of chain conformation was used. The dynamic properties of the model system were studied. The differences in the mobility of chains with different internal architectures were shown and discussed. The possible mechanisms of motions were presented.

• Periodical: Defect and Diffusion Forum (Volumes 237-240)
• Pages: 169-174
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.237-240.169
• Online since: April 2005
• Authors: Andrzej Sikorski
• Keywords: Confined Polymers, Lattice Models, Monte-Carlo Method (MC-Method), Polymer Dynamics, Polymers in Porous Media

References

[1] K. Eisenriegler: Polymers Near Surfaces (World Scientific, Singapore 1993).

[2] K. Binder: Adv. Polym. Sci. Vol. 138 (1999), p.1.

[3] A. Baumgärtner, M. Muthukumar: Adv. Chem. Phys. Vol. 94 (1996), p.625.

[4] C. E. Cordeiro, M. Molisana, D. Thirumalai: J. Phys. II Vol. 7 (1997), p.433.

[5] A. Milchev, K. Binder: Eur. Phys. J. B Vol. 3 (1998), p.477.

[6] A. Sikorski, P. Romiszowski: J. Chem. Phys. Vol. 116 (2002), p.1731.

[7] A. Sikorski: Makromol. Chem., Theory Simul. Vol. 2 (1993), p.319.

[8] J. Skolnick, A. Kolinski: Adv. Chem. Phys. Vol. 78 (1990), p.223.

[9] A. Sikorski, P. Romiszowski, J. Chem. Phys. Vol. 120 (2004), p.7206.

[10] A. Sikorski, A. Kolinski, J. Skolnick: Macromol. Theory Simul. Vol. 3 (1994), p.715.

[11] T. P. Lodge, N. A. Rotstein, S. Prager: Adv. Chem. Phys. Vol. 79 (1990), p.1.