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Modeling non-Gaussian extensibility effects in elongation of nearly monodisperse polystyrene melts
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10.1122/1.2184127
/content/sor/journal/jor2/50/3/10.1122/1.2184127
http://aip.metastore.ingenta.com/content/sor/journal/jor2/50/3/10.1122/1.2184127

Figures

Image of FIG. 1.
FIG. 1.

Master curves of storage (, open symbols) and loss (, closed symbols) moduli of PS206k at a reference temperature of . Lines indicate predictions by use of discrete relaxation spectrum of Table I.

Image of FIG. 2.
FIG. 2.

Master curves of storage (, open symbols) and loss (, closed symbols) moduli of PS465k at a reference temperature of . Lines indicate predictions by use of discrete relaxation spectrum of Table I.

Image of FIG. 3.
FIG. 3.

Comparison of measured transient elongational viscosity data of PS206k at (symbols) to predictions by MSF model with Gaussian (full lines) and FENE chain statistics (dotted lines). Lower dotted line corresponds to the linear-viscoelastic start-up viscosity.

Image of FIG. 4.
FIG. 4.

Comparison of measured transient elongational viscosity data of PS206k at (symbols) to predictions by MSF model with Gaussian chain statistics (full lines). Lower dotted line corresponds to the linear-viscoelastic start-up viscosity.

Image of FIG. 5.
FIG. 5.

Comparison of measured transient elongational viscosity data of PS465k at (symbols) to predictions by MSF model with Gaussian (full lines) and FENE chain statistics (dotted lines). Lower dotted line corresponds to the linear-viscoelastic start-up viscosity.

Image of FIG. 6.
FIG. 6.

Comparison of measured transient elongational viscosity data of PS465k at (symbols) to predictions by MSF model with Gaussian chain statistics (full lines). Lower dotted line corresponds to the linear-viscoelastic start-up viscosity.

Image of FIG. 7.
FIG. 7.

Comparison of steady-state elongational stress vs Rouse-time based Deborah number to MSF predictions for PS206k (dotted line) and PS465k (full line) at .

Image of FIG. 8.
FIG. 8.

Comparison of measured transient birefringence data (symbols) vs transient elongational stress for PS206k at to MSF predictions in the Gaussian limit (dotted straight line) and with finite extensibility (, lines) for four different strain rates.

Image of FIG. 9.
FIG. 9.

Comparison of measured birefringence data vs elongational stress for PS465k at (open symbols) and PS206k at (full symbols) to MSF predictions in the Gaussian limit (dotted straight line) and with finite extensibility (, full line for PS465k and dash-dotted line for PS206k).

Image of FIG. 10.
FIG. 10.

Comparison of Gaussian square of tension , , to FENE square of stretch, , and FENE product of tension and stretch, , as a function of relative Hencky strain for PS206k at and different strain rates.

Tables

Generic image for table
TABLE I.

Molecular characterization and relaxation spectra of PS samples at .

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/content/sor/journal/jor2/50/3/10.1122/1.2184127
2006-05-01
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Modeling non-Gaussian extensibility effects in elongation of nearly monodisperse polystyrene melts
http://aip.metastore.ingenta.com/content/sor/journal/jor2/50/3/10.1122/1.2184127
10.1122/1.2184127
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