Zero-Shear Viscosity of Linear Polymer Solutions over a Wide Range of Concentration

Yoshiaki Takahashi; Ichiro Noda; Mitsuru Nagasawa

doi:10.1021/ma00147a033

Zero-Shear Viscosity of Linear Polymer Solutions over a Wide Range of Concentration

Yoshiaki Takahashi, Ichiro Noda, Mitsuru Nagasawa

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

119 Citations (Scopus)

Abstract

The zero-shear viscosity data of poly(a-methylstyrene) solutions in good, poor, and 0 solvents covering wide ranges of polymer concentration and molecular weight were accumulated and analyzed on the basis of the scaling concept of de Gennes, in comparison with the other theories. The theory was found to be useful for understanding the viscosity behavior in the semidilute region. However, the theory is not applicable if the polymer concentration is higher than ≃0.2 g/mL. The crossover point from the dilute to the semidilute region varies with solvent power.

Original language	English
Pages (from-to)	1002-1008
Number of pages	7
Journal	Macromolecules
Volume	18
Issue number	5
DOIs	https://doi.org/10.1021/ma00147a033
Publication status	Published - Jan 1 1985
Externally published	Yes

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/ma00147a033

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AB - The zero-shear viscosity data of poly(a-methylstyrene) solutions in good, poor, and 0 solvents covering wide ranges of polymer concentration and molecular weight were accumulated and analyzed on the basis of the scaling concept of de Gennes, in comparison with the other theories. The theory was found to be useful for understanding the viscosity behavior in the semidilute region. However, the theory is not applicable if the polymer concentration is higher than ≃0.2 g/mL. The crossover point from the dilute to the semidilute region varies with solvent power.

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Zero-Shear Viscosity of Linear Polymer Solutions over a Wide Range of Concentration

Abstract

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