A hierarchical multi-mode MSF model for long-chain branched polymer melts part II: multiaxial extensional flows

Esmaeil Narimissa; Víctor H. Rolón-Garrido; Manfred H. Wagner

doi:10.1007/s00397-016-0922-y

A hierarchical multi-mode MSF model for long-chain branched polymer melts part II: multiaxial extensional flows

Esmaeil Narimissa^*, Víctor H. Rolón-Garrido, Manfred H. Wagner

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

In part I, a novel hierarchical multi-mode molecular stress function (HMMSF) model for long-chain branched (LCB) polymer melts has been proposed, which implements the basic ideas of (i) the pom-pom model, (ii) hierarchal relaxation, (iii) dynamic dilution, and (iv) interchain pressure. Here, the capability of this approach is demonstrated in modelling the extensional viscosity data of a broadly distributed long-chain branched polymer melt in uniaxial, equibiaxial, and planar extensional deformations with only a single non-linear parameter, the dilution modulus, which quantifies the fraction of dynamically diluted chain segments.

Original language	English
Pages (from-to)	327-333
Number of pages	7
Journal	Rheologica Acta
Volume	55
Issue number	4
DOIs	https://doi.org/10.1007/s00397-016-0922-y
State	Published - 1 Apr 2016
Externally published	Yes

Keywords

Biaxial flow
Elongational flow
Molecular stress function model
Multiaxial extensional flow
Polyethylene
Polymer melt

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title = "A hierarchical multi-mode MSF model for long-chain branched polymer melts part II: multiaxial extensional flows",

abstract = "In part I, a novel hierarchical multi-mode molecular stress function (HMMSF) model for long-chain branched (LCB) polymer melts has been proposed, which implements the basic ideas of (i) the pom-pom model, (ii) hierarchal relaxation, (iii) dynamic dilution, and (iv) interchain pressure. Here, the capability of this approach is demonstrated in modelling the extensional viscosity data of a broadly distributed long-chain branched polymer melt in uniaxial, equibiaxial, and planar extensional deformations with only a single non-linear parameter, the dilution modulus, which quantifies the fraction of dynamically diluted chain segments.",

keywords = "Biaxial flow, Elongational flow, Molecular stress function model, Multiaxial extensional flow, Polyethylene, Polymer melt",

author = "Esmaeil Narimissa and Rol{\'o}n-Garrido, {V{\'i}ctor H.} and Wagner, {Manfred H.}",

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doi = "10.1007/s00397-016-0922-y",

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T1 - A hierarchical multi-mode MSF model for long-chain branched polymer melts part II

T2 - multiaxial extensional flows

AU - Narimissa, Esmaeil

AU - Rolón-Garrido, Víctor H.

AU - Wagner, Manfred H.

PY - 2016/4/1

Y1 - 2016/4/1

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AB - In part I, a novel hierarchical multi-mode molecular stress function (HMMSF) model for long-chain branched (LCB) polymer melts has been proposed, which implements the basic ideas of (i) the pom-pom model, (ii) hierarchal relaxation, (iii) dynamic dilution, and (iv) interchain pressure. Here, the capability of this approach is demonstrated in modelling the extensional viscosity data of a broadly distributed long-chain branched polymer melt in uniaxial, equibiaxial, and planar extensional deformations with only a single non-linear parameter, the dilution modulus, which quantifies the fraction of dynamically diluted chain segments.

KW - Biaxial flow

KW - Elongational flow

KW - Molecular stress function model

KW - Multiaxial extensional flow

KW - Polyethylene

KW - Polymer melt

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