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http://elar.urfu.ru/handle/10995/102340
Title: | Ferrogels cross-linked by magnetic particles: Field-driven deformation and elasticity studied using computer simulations |
Authors: | Weeber, R. Kantorovich, S. Holm, C. |
Issue Date: | 2015 |
Publisher: | American Institute of Physics Inc. |
Citation: | Weeber R. Ferrogels cross-linked by magnetic particles: Field-driven deformation and elasticity studied using computer simulations / R. Weeber, S. Kantorovich, C. Holm. — DOI 10.1063/1.4932371 // Journal of Chemical Physics. — 2015. — Vol. 143. — Iss. 15. — 154901. |
Abstract: | Ferrogels, i.e., swollen polymer networks into which magnetic particles are immersed, can be considered as "smart materials" since their shape and elasticity can be controlled by an external magnetic field. Using molecular dynamics simulations on the coarse-grained level, we study a ferrogel in which the magnetic particles act as the cross-linkers of the polymer network. In a homogeneous external magnetic field, the direct coupling between the orientation of the magnetic moments and the polymers by means of covalent bonds gives rise to a deformation of the gel, independent of the interparticle dipole-dipole interaction. In this paper, we quantify this deformation, and, in particular, we investigate the gel's elastic moduli and its magnetic response for two different connectivities of the network nodes. Our results demonstrate that these properties depend significantly on the topology of the polymer network. � 2015 AIP Publishing LLC. |
Keywords: | DEFORMATION ELASTICITY MAGNETIC FIELDS MAGNETIC MOMENTS MOLECULAR DYNAMICS POLYMERS DIPOLE DIPOLE INTERACTIONS DIRECT COUPLING EXTERNAL MAGNETIC FIELD MAGNETIC PARTICLE MAGNETIC RESPONSE MOLECULAR DYNAMICS SIMULATIONS POLYMER NETWORKS SWOLLEN POLYMERS MAGNETISM |
URI: | http://elar.urfu.ru/handle/10995/102340 |
Access: | info:eu-repo/semantics/openAccess |
SCOPUS ID: | 84945255197 |
WOS ID: | 000363418400035 |
PURE ID: | 06bf5c5d-f8d2-496e-b179-f2dfe549f3f6 543374 |
ISSN: | 219606 |
DOI: | 10.1063/1.4932371 |
Appears in Collections: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
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2-s2.0-84945255197.pdf | 7,76 MB | Adobe PDF | View/Open |
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