Entangled polymer dynamics in equilibrium and flow modeled through slip links

JD Schieber, M Andreev - Annual review of chemical and …, 2014 - annualreviews.org
The idea that the dynamics of concentrated, high–molecular weight polymers are largely
governed by entanglements is now widely accepted and typically understood through the …

Relating chain conformations to extensional stress in entangled polymer melts

TC O'Connor, NJ Alvarez, MO Robbins - Physical review letters, 2018 - APS
Nonlinear extensional flows are common in polymer processing, but they remain
challenging theoretically because dramatic stretching of chains deforms the entanglement …

Stress relaxation in highly oriented melts of entangled polymers

TC O'Connor, A Hopkins, MO Robbins - Macromolecules, 2019 - ACS Publications
Molecular dynamics simulations are used to study relaxation of entangled polymer melts
deformed far from equilibrium by uniaxial extensional flow. Melts are elongated to a Hencky …

Convective constraint release (CCR) revisited

G Ianniruberto, G Marrucci - Journal of Rheology, 2014 - pubs.aip.org
The molecular mechanism known as convective constraint release (CCR) is here revisited to
account for the fact that in fast flows topological entanglements decrease in number, as …

[HTML][HTML] A multichain polymer slip-spring model with fluctuating number of entanglements for linear and nonlinear rheology

A Ramírez-Hernández, BL Peters, M Andreev… - The Journal of …, 2015 - pubs.aip.org
A theoretically informed entangled polymer simulation approach is presented for description
of the linear and non-linear rheology of entangled polymer melts. The approach relies on a …

Diluting entangled polymers affects transient hardening but not their steady elongational viscosity

T Shahid, C Clasen, F Oosterlinck… - …, 2019 - ACS Publications
It is now established that the huge qualitative difference in flow behavior between entangled
polymer melts and solutions in nonlinear elongational flows cannot be explained in the …

Polymer rheology predictions from first principles using the slip-link model

D Becerra, A Córdoba, M Katzarova, M Andreev… - Journal of …, 2020 - pubs.aip.org
The discrete slip-link theory is a hierarchy of strongly connected models that have great
success predicting the linear and nonlinear rheology of high-molecular-weight polymers …

Primitive-path statistics of entangled polymers: mapping multi-chain simulations onto single-chain mean-field models

RJA Steenbakkers, C Tzoumanekas, Y Li… - New Journal of …, 2014 - iopscience.iop.org
We present a method to map the full equilibrium distribution of the primitive-path (PP) length,
obtained from multi-chain simulations of polymer melts, onto a single-chain mean …

Challenging tube and slip-link models: Predicting the linear rheology of blends of well-characterized star and linear 1, 4-polybutadienes

PS Desai, BG Kang, M Katzarova, R Hall… - …, 2016 - ACS Publications
We compare predictions of two of the most advanced versions of the tube model, namely the
“Hierarchical model” by Wang et al.[J. Rheol. 2010, 54, 223] and the BoB (branch-on …

The effect of polymer chain length on the mechanical properties of triblock copolymer gels

TL Chantawansri, TW Sirk, R Mrozek, JL Lenhart… - Chemical Physics …, 2014 - Elsevier
An ABA triblock copolymer in a midblock selective solvent is studied as a function of the
chain length, using a novel dissipative particle dynamics (DPD) model which includes a …