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

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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.

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Authors and Affiliations

  1. Polymer Engineering/Polymer Physics, Berlin Institute of Technology (TU Berlin), Fasanenstrasse 90, 10623, Berlin, Germany

    Esmaeil Narimissa, Víctor H. Rolón-Garrido & Manfred H. Wagner

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  1. Esmaeil Narimissa
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  2. Víctor H. Rolón-Garrido
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  3. Manfred H. Wagner
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Correspondence to Esmaeil Narimissa.

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Víctor H. Rolón-Garrido passed away on June 8, 2015.

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Narimissa, E., Rolón-Garrido, V.H. & Wagner, M.H. A hierarchical multi-mode MSF model for long-chain branched polymer melts part II: multiaxial extensional flows. Rheol Acta 55, 327–333 (2016). https://doi.org/10.1007/s00397-016-0922-y

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