Topological characteristics of entangled short-chain branched polymers in comparison to the linear analogs under shear flow
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We present the structural and rheological properties of short-chain branched (SCB) polyethylene (PE) under shear flows via nonequilibrium molecular dynamics (NEMD) simulations. We employed C565H1132 SCB PE molecule, which has the same backbone as C400H802 linear PE. Each SCB PE consists of 33 pure linear analogs, short chain branches (each branch consists of five carbon atoms). SCB PE was studied in a wide range of shear flows. We found the effect of SCB compared with the results of C400H802 linear PE and the relationship between the entanglement and SCB. The results can provide a direction on the role of SCB in terms of structural and rheological properties under shear flow.