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Summary: Langevin molecular dynamics (LMD) simulations have been performed in order to understand the role of the short chain branches (SCB) on the formation of ordered domains by cooling ethylene/α‐olefins single chain models. Different long single‐chain models (C2000) with 0, 5 and 10 branches each 1000 carbons were selected. The branches were randomly distributed along the backbone chain. Furthermore,...
A strong effect of the third moment of the molecular weight distribution on the melt linear viscoelastic response of linear polyethylene samples is reported. The Newtonian viscosity of samples with broad molecular weight distributions shows a noticeable increase with respect to model linear samples with the same weight-average molecular weight but symmetric and narrower molecular weight distributions...
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