Time is length in self-similar logarithmic aging of physically cross-linked semiflexible polymer networks
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866912648057061376 |
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| author | Ilg, Patrick Luap, Clarisse Kröger, Martin |
| author_facet | Ilg, Patrick Luap, Clarisse Kröger, Martin |
| contents | Physical aging in polymers is a fundamental yet poorly understood phenomenon, as diverse macromolecular systems exhibit remarkably similar slow dynamics. Through molecular dynamics simulations of physically crosslinked networks composed of semiflexible polymers, we identify a previously unexplored class of self-similar aging. The network undergoes ultra-slow coarsening characterized by a logarithmically growing mesh size, $L(t)\sim \ln t$, which governs the spatial organization, cohesive and bending energies, and the aging dynamics of the system. This single time-dependent length scale defines an internal clock, giving rise to spatio- temporal self-similarity of both structure and dynamics - offering a perspective on aging in soft and disordered materials. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_12989 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Time is length in self-similar logarithmic aging of physically cross-linked semiflexible polymer networks Ilg, Patrick Luap, Clarisse Kröger, Martin Soft Condensed Matter Disordered Systems and Neural Networks Materials Science Physical aging in polymers is a fundamental yet poorly understood phenomenon, as diverse macromolecular systems exhibit remarkably similar slow dynamics. Through molecular dynamics simulations of physically crosslinked networks composed of semiflexible polymers, we identify a previously unexplored class of self-similar aging. The network undergoes ultra-slow coarsening characterized by a logarithmically growing mesh size, $L(t)\sim \ln t$, which governs the spatial organization, cohesive and bending energies, and the aging dynamics of the system. This single time-dependent length scale defines an internal clock, giving rise to spatio- temporal self-similarity of both structure and dynamics - offering a perspective on aging in soft and disordered materials. |
| title | Time is length in self-similar logarithmic aging of physically cross-linked semiflexible polymer networks |
| topic | Soft Condensed Matter Disordered Systems and Neural Networks Materials Science |
| url | https://arxiv.org/abs/2510.12989 |