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Journal article
Arrested swelling of highly entangled polymer globules
Physical review letters, v 90(22), pp 225504-225504
06 Jun 2003
PMID: 12857321
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Abstract
Upon aging, a collapsed long chain evolves from a crumpled state to a self-entangled globule which can be thought of as a large knot. Swelling of an equilibrium globule in good solvent is a two-step process: (i) fast swelling into an arrested stretched structure with conserved entanglement topology followed by (ii) slow disentanglement. Using computer simulation, we found both mass-mass (m-m) and entanglement-entanglement (e-e) power law correlations inside the swollen globule. The m-m correlations are characterized by a set of two exponents in agreement with a Flory-type argument. The e-e correlations are also characterized by two exponents, both of them larger (by approximately 0.3) than the related m-m exponents. We interpret this difference as evidence of distance-dependent repulsion E=-0.3ln((rho)k(B)T between entanglements sliding along the polymer chain.
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Details
- Title
- Arrested swelling of highly entangled polymer globules
- Creators
- Nam-Kyung Lee - Laboratoire Européen Associé ICS Strasbourg, France)/MPIP(Mainz, Germany)Cameron F AbramsA JohnerS Obukhov
- Publication Details
- Physical review letters, v 90(22), pp 225504-225504
- Publisher
- Cold Spring Harbor Press; United States
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000183381200021
- Scopus ID
- 2-s2.0-85003411392
- Other Identifier
- 991014878174104721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Physics, Multidisciplinary