Abstract
Flow of polymer chains is studied as a function of temperature ( T), field ( E), and chain length ( L c ) by a hybrid computer simulation. In low field, the polymer flow rate density ( j) shows a linear response, i.e., Darcy law, j= φE at high temperatures and a power-law response j= φE δ at low temperatures. The power-law response exponent, δ is nonuniversal and depends on temperature ( δ≃1.0–2.0). The chain permeability φ= A( L c ) T 0.21±0.01 in the low temperature regime; the prefactor A( L c ) decays with the chain length according to A∼ L c −0.18.
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