Threading-Unthreading Transition of Linear-Ring Polymer Blends in Extensional Flow

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Threading-Unthreading Transition of Linear-Ring Polymer Blends in Extensional Flow. / Borger, Anine; Wang, Wendi; O'Connor, Thomas C.; Ge, Ting; Grest, Gary S.; Jensen, Grethe V.; Ahn, Junyoung; Chang, Taihyun; Hassager, Ole; Mortensen, Kell; Vlassopoulos, Dimitris; Huang, Qian.

In: ACS Macro Letters, Vol. 9, No. 10, 20.10.2020, p. 1452-1457.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Borger, A, Wang, W, O'Connor, TC, Ge, T, Grest, GS, Jensen, GV, Ahn, J, Chang, T, Hassager, O, Mortensen, K, Vlassopoulos, D & Huang, Q 2020, 'Threading-Unthreading Transition of Linear-Ring Polymer Blends in Extensional Flow', ACS Macro Letters, vol. 9, no. 10, pp. 1452-1457. https://doi.org/10.1021/acsmacrolett.0c00607

APA

Borger, A., Wang, W., O'Connor, T. C., Ge, T., Grest, G. S., Jensen, G. V., Ahn, J., Chang, T., Hassager, O., Mortensen, K., Vlassopoulos, D., & Huang, Q. (2020). Threading-Unthreading Transition of Linear-Ring Polymer Blends in Extensional Flow. ACS Macro Letters, 9(10), 1452-1457. https://doi.org/10.1021/acsmacrolett.0c00607

Vancouver

Borger A, Wang W, O'Connor TC, Ge T, Grest GS, Jensen GV et al. Threading-Unthreading Transition of Linear-Ring Polymer Blends in Extensional Flow. ACS Macro Letters. 2020 Oct 20;9(10):1452-1457. https://doi.org/10.1021/acsmacrolett.0c00607

Author

Borger, Anine ; Wang, Wendi ; O'Connor, Thomas C. ; Ge, Ting ; Grest, Gary S. ; Jensen, Grethe V. ; Ahn, Junyoung ; Chang, Taihyun ; Hassager, Ole ; Mortensen, Kell ; Vlassopoulos, Dimitris ; Huang, Qian. / Threading-Unthreading Transition of Linear-Ring Polymer Blends in Extensional Flow. In: ACS Macro Letters. 2020 ; Vol. 9, No. 10. pp. 1452-1457.

Bibtex

@article{8195d4609448493cafc462a395ff2faa,
title = "Threading-Unthreading Transition of Linear-Ring Polymer Blends in Extensional Flow",
abstract = "Adding small amounts of ring polymers to a matrix of their linear counterparts is known to increase the zero-shear-rate viscosity because of linear-ring threading. Uniaxial extensional rheology measurements show that, unlike its pure linear and ring constituents, the blend exhibits an overshoot in the stress growth coefficient. By combining these measurements with ex-situ small-angle neutron scattering and nonequilibrium molecular dynamics simulations, this overshoot is shown to be driven by a transient threading-unthreading transition of rings embedded within the linear entanglement network. Prior to unthreading, embedded rings deform affinely with the linear entanglement network and produce a measurably stronger elongation of the linear chains in the blend compared to the pure linear melt. Thus, rings uniquely alter the mechanisms of transient elongation in linear polymers.",
keywords = "MELT RHEOLOGY, STRESS-RELAXATION, SELF-DIFFUSION, VISCOSITY, POLYSTYRENES, MOLECULES, DYNAMICS, SHEAR",
author = "Anine Borger and Wendi Wang and O'Connor, {Thomas C.} and Ting Ge and Grest, {Gary S.} and Jensen, {Grethe V.} and Junyoung Ahn and Taihyun Chang and Ole Hassager and Kell Mortensen and Dimitris Vlassopoulos and Qian Huang",
year = "2020",
month = oct,
day = "20",
doi = "10.1021/acsmacrolett.0c00607",
language = "English",
volume = "9",
pages = "1452--1457",
journal = "ACS Macro Letters",
issn = "2161-1653",
publisher = "American Chemical Society",
number = "10",

}

RIS

TY - JOUR

T1 - Threading-Unthreading Transition of Linear-Ring Polymer Blends in Extensional Flow

AU - Borger, Anine

AU - Wang, Wendi

AU - O'Connor, Thomas C.

AU - Ge, Ting

AU - Grest, Gary S.

AU - Jensen, Grethe V.

AU - Ahn, Junyoung

AU - Chang, Taihyun

AU - Hassager, Ole

AU - Mortensen, Kell

AU - Vlassopoulos, Dimitris

AU - Huang, Qian

PY - 2020/10/20

Y1 - 2020/10/20

N2 - Adding small amounts of ring polymers to a matrix of their linear counterparts is known to increase the zero-shear-rate viscosity because of linear-ring threading. Uniaxial extensional rheology measurements show that, unlike its pure linear and ring constituents, the blend exhibits an overshoot in the stress growth coefficient. By combining these measurements with ex-situ small-angle neutron scattering and nonequilibrium molecular dynamics simulations, this overshoot is shown to be driven by a transient threading-unthreading transition of rings embedded within the linear entanglement network. Prior to unthreading, embedded rings deform affinely with the linear entanglement network and produce a measurably stronger elongation of the linear chains in the blend compared to the pure linear melt. Thus, rings uniquely alter the mechanisms of transient elongation in linear polymers.

AB - Adding small amounts of ring polymers to a matrix of their linear counterparts is known to increase the zero-shear-rate viscosity because of linear-ring threading. Uniaxial extensional rheology measurements show that, unlike its pure linear and ring constituents, the blend exhibits an overshoot in the stress growth coefficient. By combining these measurements with ex-situ small-angle neutron scattering and nonequilibrium molecular dynamics simulations, this overshoot is shown to be driven by a transient threading-unthreading transition of rings embedded within the linear entanglement network. Prior to unthreading, embedded rings deform affinely with the linear entanglement network and produce a measurably stronger elongation of the linear chains in the blend compared to the pure linear melt. Thus, rings uniquely alter the mechanisms of transient elongation in linear polymers.

KW - MELT RHEOLOGY

KW - STRESS-RELAXATION

KW - SELF-DIFFUSION

KW - VISCOSITY

KW - POLYSTYRENES

KW - MOLECULES

KW - DYNAMICS

KW - SHEAR

U2 - 10.1021/acsmacrolett.0c00607

DO - 10.1021/acsmacrolett.0c00607

M3 - Journal article

VL - 9

SP - 1452

EP - 1457

JO - ACS Macro Letters

JF - ACS Macro Letters

SN - 2161-1653

IS - 10

ER -

ID: 251691733