Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2007-11-28
J. Chem. Phys. 128, 044902 (2008)
Physics
Condensed Matter
Soft Condensed Matter
To appear in J. Chem. Phys.
Scientific paper
10.1063/1.2825597
We combine computer simulations and scaling arguments to develop a unified view of polymer entanglement based on the primitive path analysis (PPA) of the microscopic topological state. Our results agree with experimentally measured plateau moduli for three different polymer classes over a wide rangeof reduced polymer densities: (i) semi-dilute theta solutions of synthetic polymers, (ii) the corresponding dense melts above the glass transition or crystallization temperature, and (iii) solutions of semi-flexible (bio)polymers such as f-actin or suspensions of rodlike viruses. Together these systems cover the entire range from loosely to tightly entangled polymers. In particular, we argue that the primitive path analysis renormalizes a loosely to a tightly entangled system and provide a new explanation of the successful Lin-Noolandi packing conjecture for polymer melts.
Everaers Ralf
Grest Gary S.
Uchida Nariya
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