Viscosity predictions for model miscible polymer blends: Including self-concentration, double reptation, and tube dilation

Jeffrey C. Haley; Timothy P. Lodge

doi:10.1122/1.2039847

Viscosity predictions for model miscible polymer blends: Including self-concentration, double reptation, and tube dilation

Jeffrey C. Haley, Timothy P. Lodge

Chemistry (Twin Cities)

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

17 Scopus citations

Abstract

The viscosities of miscible blends of 1,4-polyisoprene (Mn =78 kgmol) /poly(vinylethylene) (Mn =10 kgmol and 120 kgmol) and polystyrene (Mn =30 kgmol) /poly(vinyl methyl ether) (Mn =105 kgmol) were measured as a function of temperature and composition. These results, along with literature data for poly(ethylene-alt-propylene)/head-to-head polypropylene [Gell (1996)] and molecular weight blends of 1,4-polybutadiene [Wang (2003)], were compared to the predictions of a previously published model [Haley and Lodge (2004a)]. The agreement between theory and experiment is generally good, though some quantitative discrepancies are apparent. A new tube dilation model that predicts the terminal relaxation time of the slower moving component in a blend as a function of composition is presented. This model enables improved viscosity predictions, and in several cases produces near quantitative predictions.

Original language	English (US)
Article number	002506JOR
Pages (from-to)	1277-1302
Number of pages	26
Journal	Journal of Rheology
Volume	49
Issue number	6
DOIs	https://doi.org/10.1122/1.2039847
State	Published - 2005

Bibliographical note

Funding Information:
The authors thank Stephanie Oehlke for fractionating the PVME sample, Phyllis Ukatu for assisting with measurements on the PS/PVME blends, and Hiroshi Watanabe for helpful suggestions for the tube dilation model. This work was supported by the National Science Foundation, through Award Nos. DMR-9901087 and DMR-0406656, and by the Graduate School of the University of Minnesota, through a Doctoral Dissertation Fellowship (J.C.H.).

Keywords

Blends
Constitutive equations
Viscosity

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10.1122/1.2039847

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title = "Viscosity predictions for model miscible polymer blends: Including self-concentration, double reptation, and tube dilation",

abstract = "The viscosities of miscible blends of 1,4-polyisoprene (Mn =78 kgmol) /poly(vinylethylene) (Mn =10 kgmol and 120 kgmol) and polystyrene (Mn =30 kgmol) /poly(vinyl methyl ether) (Mn =105 kgmol) were measured as a function of temperature and composition. These results, along with literature data for poly(ethylene-alt-propylene)/head-to-head polypropylene [Gell (1996)] and molecular weight blends of 1,4-polybutadiene [Wang (2003)], were compared to the predictions of a previously published model [Haley and Lodge (2004a)]. The agreement between theory and experiment is generally good, though some quantitative discrepancies are apparent. A new tube dilation model that predicts the terminal relaxation time of the slower moving component in a blend as a function of composition is presented. This model enables improved viscosity predictions, and in several cases produces near quantitative predictions.",

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PY - 2005

Y1 - 2005

N2 - The viscosities of miscible blends of 1,4-polyisoprene (Mn =78 kgmol) /poly(vinylethylene) (Mn =10 kgmol and 120 kgmol) and polystyrene (Mn =30 kgmol) /poly(vinyl methyl ether) (Mn =105 kgmol) were measured as a function of temperature and composition. These results, along with literature data for poly(ethylene-alt-propylene)/head-to-head polypropylene [Gell (1996)] and molecular weight blends of 1,4-polybutadiene [Wang (2003)], were compared to the predictions of a previously published model [Haley and Lodge (2004a)]. The agreement between theory and experiment is generally good, though some quantitative discrepancies are apparent. A new tube dilation model that predicts the terminal relaxation time of the slower moving component in a blend as a function of composition is presented. This model enables improved viscosity predictions, and in several cases produces near quantitative predictions.

AB - The viscosities of miscible blends of 1,4-polyisoprene (Mn =78 kgmol) /poly(vinylethylene) (Mn =10 kgmol and 120 kgmol) and polystyrene (Mn =30 kgmol) /poly(vinyl methyl ether) (Mn =105 kgmol) were measured as a function of temperature and composition. These results, along with literature data for poly(ethylene-alt-propylene)/head-to-head polypropylene [Gell (1996)] and molecular weight blends of 1,4-polybutadiene [Wang (2003)], were compared to the predictions of a previously published model [Haley and Lodge (2004a)]. The agreement between theory and experiment is generally good, though some quantitative discrepancies are apparent. A new tube dilation model that predicts the terminal relaxation time of the slower moving component in a blend as a function of composition is presented. This model enables improved viscosity predictions, and in several cases produces near quantitative predictions.

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KW - Constitutive equations

KW - Viscosity

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Viscosity predictions for model miscible polymer blends: Including self-concentration, double reptation, and tube dilation

Abstract

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