Elyar Tourani

The coil–stretch transition and chain segregation in elongational flow of an entangled polydisperse polyethylene melt

Atomistic nonequilibrium molecular dynamics simulations of entangled polydisperse polyethylene melts possessing a realistic log-normal molecular-weight distribution under planar elongational flow demonstrate that polydispersity fundamentally modifies the coil–stretch transition (CST). In contrast to the sharp, bi-direc...