Microscopic topology of entangled polymeric liquids
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DOI: 10.1016/j.polymer.2019.122033
Abstract: Abstract We extensively study the polymer chain packings of various entangled polymer systems. Surprisingly, the number of entanglement strands per cubed tube diameter does not obey the overlap criterion for entanglement. By analyzing microscopic topology… read more here.
Keywords: entangled polymeric; topology entangled; topology; polymeric liquids ... See more keywords
Quantification of Deformation-Induced Concentration Fluctuations in Polymeric Liquids by Small-Angle Neutron Scattering
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DOI: 10.1021/acs.macromol.1c00023
Abstract: This study demonstrates how the large concentration fluctuations of polymeric liquids under deformation and flow can be quantitatively studied by applying the spherical harmonic expansion technique... read more here.
Keywords: concentration fluctuations; polymeric liquids; quantification deformation; fluctuations polymeric ... See more keywords
Thermodynamic instability of polymeric liquids in large-amplitude oscillatory shear flow from corotational Maxwell fluid
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DOI: 10.1088/1873-7005/aad6a7
Abstract: When polymeric liquids are subjected to oscillatory shear flow, if the amplitude of the shear rate is high enough, the shear stress response will become aperiodic. This has been variously attributed to fracture, common line… read more here.
Keywords: shear flow; thermodynamic instability; polymeric liquids; large amplitude ... See more keywords
Nonequilibrium Thermodynamics of Polymeric Liquids via Atomistic Simulation
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DOI: 10.3390/e24020175
Abstract: The challenge of calculating nonequilibrium entropy in polymeric liquids undergoing flow was addressed from the perspective of extending equilibrium thermodynamics to include internal variables that quantify the internal microstructure of chain-like macromolecules and then applying… read more here.
Keywords: flow; nonequilibrium entropy; polymeric liquids; thermodynamics ... See more keywords