Dipolar Self-Interactions Drive Polymer Chain Collapse
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arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Acceso en línea: | |
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| _version_ | 1866908515154526208 |
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| author | Khandagale, Pratik deBotton, Gal Breitzman, Timothy Majidi, Carmel Dayal, Kaushik |
| author_facet | Khandagale, Pratik deBotton, Gal Breitzman, Timothy Majidi, Carmel Dayal, Kaushik |
| contents | We report that a dielectric polymer chain, constrained at both ends, sharply collapses when exposed to a high electric field. The chain collapse is driven by nonlocal dipolar interactions and anisotropic polarization of monomers, a characteristic of real polymers that prior theories were unable to incorporate. Once collapsed, a large number of chain monomers accumulate at the center location between the chain ends, locally increasing the electric field and polarization by orders of magnitude. The chain collapse is sensitive to the orientation of the applied electric field and chain stretch. Our findings not only offer new ways for rapid actuation and sensing but also provide a pathway to discover the critical physics behind instabilities and electrical breakdown in dielectric polymers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_01993 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Dipolar Self-Interactions Drive Polymer Chain Collapse Khandagale, Pratik deBotton, Gal Breitzman, Timothy Majidi, Carmel Dayal, Kaushik Soft Condensed Matter We report that a dielectric polymer chain, constrained at both ends, sharply collapses when exposed to a high electric field. The chain collapse is driven by nonlocal dipolar interactions and anisotropic polarization of monomers, a characteristic of real polymers that prior theories were unable to incorporate. Once collapsed, a large number of chain monomers accumulate at the center location between the chain ends, locally increasing the electric field and polarization by orders of magnitude. The chain collapse is sensitive to the orientation of the applied electric field and chain stretch. Our findings not only offer new ways for rapid actuation and sensing but also provide a pathway to discover the critical physics behind instabilities and electrical breakdown in dielectric polymers. |
| title | Dipolar Self-Interactions Drive Polymer Chain Collapse |
| topic | Soft Condensed Matter |
| url | https://arxiv.org/abs/2509.01993 |