Asset Details
Do you wish to reserve the book?
Evolution of Polymer Melt Conformation and Entanglement under High-Rate Elongational Flow
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Evolution of Polymer Melt Conformation and Entanglement under High-Rate Elongational Flow
Do you wish to request the book?
Evolution of Polymer Melt Conformation and Entanglement under High-Rate Elongational Flow
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Evolution of Polymer Melt Conformation and Entanglement under High-Rate Elongational Flow
2024
Overview
Using molecular dynamics (MD) simulations, this study explores the fluid properties of three polymer melts with the same number of entanglements,
Z
, achieved by adjusting the entanglement length
N
e
, while investigating the evolution of polymer melt conformation and entanglement under high-rate elongational flow. The identification of a master curve indicates consistent normalized linear viscoelastic behavior. Surprising findings regarding the steady-state viscosity at various elongational rates (
Wi
R
>4.7) for polymer melts with the same
Z
have been uncovered, challenging existing tube models. Nevertheless, the study demonstrates the potential for normalizing the steady-state elongational viscosity at high rates (
Wi
R
>4.7) by scaling with the square of the chain contour length. Additionally, the observed independence of viscosity on the elongational rate at high rates suggests that higher rates lead to a more significant alignment of polymer chains, a decrease in entanglement, and a stretching in contour length of polymer chains. Molecular-level tracking of tagged chains further supports the assumption of no entanglement under rapid elongation, emphasizing the need for further research on disentanglement in polymer melts subjected to high-rate elongational flow. These results carry significant implications for understanding and predicting the behavior of polymer melts under high-rate elongational flow conditions.
Publisher
Springer Nature Singapore,Springer Nature B.V
