Intrinsic viscosity and friction coefficient of polymer molecules in solution: Porous sphere model

P.F. Mijnlieff, F.W. Wiegel

Research output: Contribution to journalArticleAcademic

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Abstract

The intrinsic viscosity [] and the translational friction coefficient f of polymer molecules in solution are calculated on the basis of the porous sphere model. The only information needed to predict [] and f is the polymer molecular weight, the radius of gyration in the solvent, and the permeability as a function of position in the porous sphere. For systems for which this information is available there is satisfactory agreement between predicated and directly measured values of [] and f. No adjustment of parameters is required. The influence of solvent quality is more complex than is suggested by the experimentally verified Flory-Fox relation for []; the simple form of this relation stems from the fact that two quite large effects of solvent quality approximately compensate each other. The complete flow pattern of the solvent around and through the polymer coil can be calculated. Contrary to what is usually believed the solvent flow in the polymer coil is not effectively blocked, even at the center. The connection between the present treatment and the microscopic theory of Kirkwood and Riseman is investigated.
Original languageUndefined
Pages (from-to)245-263
JournalJournal of Polymer Science: Polymer Chemistry Edition
Volume16
Issue number2
DOIs
Publication statusPublished - 1978

Keywords

  • IR-70775

Cite this

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title = "Intrinsic viscosity and friction coefficient of polymer molecules in solution: Porous sphere model",
abstract = "The intrinsic viscosity [] and the translational friction coefficient f of polymer molecules in solution are calculated on the basis of the porous sphere model. The only information needed to predict [] and f is the polymer molecular weight, the radius of gyration in the solvent, and the permeability as a function of position in the porous sphere. For systems for which this information is available there is satisfactory agreement between predicated and directly measured values of [] and f. No adjustment of parameters is required. The influence of solvent quality is more complex than is suggested by the experimentally verified Flory-Fox relation for []; the simple form of this relation stems from the fact that two quite large effects of solvent quality approximately compensate each other. The complete flow pattern of the solvent around and through the polymer coil can be calculated. Contrary to what is usually believed the solvent flow in the polymer coil is not effectively blocked, even at the center. The connection between the present treatment and the microscopic theory of Kirkwood and Riseman is investigated.",
keywords = "IR-70775",
author = "P.F. Mijnlieff and F.W. Wiegel",
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doi = "10.1002/pol.1978.180160206",
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volume = "16",
pages = "245--263",
journal = "Journal of Polymer Science: Polymer Chemistry Edition",
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}

Intrinsic viscosity and friction coefficient of polymer molecules in solution: Porous sphere model. / Mijnlieff, P.F.; Wiegel, F.W.

In: Journal of Polymer Science: Polymer Chemistry Edition, Vol. 16, No. 2, 1978, p. 245-263.

Research output: Contribution to journalArticleAcademic

TY - JOUR

T1 - Intrinsic viscosity and friction coefficient of polymer molecules in solution: Porous sphere model

AU - Mijnlieff, P.F.

AU - Wiegel, F.W.

PY - 1978

Y1 - 1978

N2 - The intrinsic viscosity [] and the translational friction coefficient f of polymer molecules in solution are calculated on the basis of the porous sphere model. The only information needed to predict [] and f is the polymer molecular weight, the radius of gyration in the solvent, and the permeability as a function of position in the porous sphere. For systems for which this information is available there is satisfactory agreement between predicated and directly measured values of [] and f. No adjustment of parameters is required. The influence of solvent quality is more complex than is suggested by the experimentally verified Flory-Fox relation for []; the simple form of this relation stems from the fact that two quite large effects of solvent quality approximately compensate each other. The complete flow pattern of the solvent around and through the polymer coil can be calculated. Contrary to what is usually believed the solvent flow in the polymer coil is not effectively blocked, even at the center. The connection between the present treatment and the microscopic theory of Kirkwood and Riseman is investigated.

AB - The intrinsic viscosity [] and the translational friction coefficient f of polymer molecules in solution are calculated on the basis of the porous sphere model. The only information needed to predict [] and f is the polymer molecular weight, the radius of gyration in the solvent, and the permeability as a function of position in the porous sphere. For systems for which this information is available there is satisfactory agreement between predicated and directly measured values of [] and f. No adjustment of parameters is required. The influence of solvent quality is more complex than is suggested by the experimentally verified Flory-Fox relation for []; the simple form of this relation stems from the fact that two quite large effects of solvent quality approximately compensate each other. The complete flow pattern of the solvent around and through the polymer coil can be calculated. Contrary to what is usually believed the solvent flow in the polymer coil is not effectively blocked, even at the center. The connection between the present treatment and the microscopic theory of Kirkwood and Riseman is investigated.

KW - IR-70775

U2 - 10.1002/pol.1978.180160206

DO - 10.1002/pol.1978.180160206

M3 - Article

VL - 16

SP - 245

EP - 263

JO - Journal of Polymer Science: Polymer Chemistry Edition

JF - Journal of Polymer Science: Polymer Chemistry Edition

SN - 0360-6376

IS - 2

ER -