Developments Toward Simulation of Entangled Polymer Melts by Dissipative Particle Dynamics (dpd)
作者： GUOAI PAN , CHARLES W. MANKE
DOI: 10.1142/S0217979203017400
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摘要: A segmental repulsion force is developed to reduce the frequency of artificial chain segment crossing events in DPD simulations dynamics polymer melts. The scaling viscosity and center mass diffusion coefficients with length show transitions exponents at a critical entanglement length. Above length, exponent for coefficient close experimental value -2, but +2, which smaller than +3.4. Without forces, crossings occur freely, both follow Rouse model all lengths.
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