3 papers
cond-mat.soft2026
Delayed Arm Retraction Controls the Nonlinear Oscillatory Response of Long-Chain-Branched Polymer Melts
Dario Nichetti, Alessio Zaccone
Long-chain branching profoundly modifies the nonlinear oscillatory response of entangled polymer melts by introducing arm-retraction pathways absent in linear polymers. We present…
cond-mat.soft2026
Constraint-Limited Tube Orientation of Entangled Polymers in Oscillatory Shear Deformation
Dario Nichetti, Alessio Zaccone
We develop a molecularly motivated description of the nonlinear index (NLI) in oscillatory shear deformation of entangled polymers. The central assumption is that the shear compone…
cond-mat.soft2026
Microscopic Nonaffine Deformation Theory of LAOS in Polymers
Dario Nichetti, Alessio Zaccone
We develop a molecularly motivated framework connecting large-amplitude oscillatory shear (LAOS) nonlinearities in entangled polymers to frequency-dependent nonaffine relaxation in…