主题：【已应助】一篇外文文献Solution properties of poly(vinylidene fluoride) Macromolecular characterization of soluble samples

Polymer paper

Solution properties of poly(vinylidene fluoride): 1. Macromolecular characterization of soluble samples References and further reading may be available for this article. To view references and further reading you must purchase this article.

G. Lutringer^{*, a} and G. Weill<sup>a



a</sup>Institut Charles Sadron (CRM-EAHP), Université L. Pasteur, 6 rue Boussingault, 67083 Strasbourg Cedex, France

Received 7 November 1989; 

revised 22 February 1990; 

accepted 27 April 1990. 

Available online 16 April 2003.

Abstract

Dissolution in a range of solvents reveals two kinds of behaviour of poly(vinylidene fluoride) (PVDF): readily soluble samples (mostly suspension-polymerized) and partly gel-forming samples (mostly emulsion-polymerized). From molecular characterization of a number of industrial and laboratory samples of the first kind in solution in different solvents by light scattering, intrinsic viscosity and size exclusion chromatography, we derive unperturbed dimensions and χ parameters. Our results differ from previous measurements where light-scattering experiments were carried out in solvents with very low and/or on less-soluble (second-kind) PVDF, where microgel formation cannot be avoided.

Keywords: poly(vinylidene fluoride); conformation; thermodynamic interaction; light scattering; intrinsic viscosity; size exclusion chromatography

^* Present address: Ciba-Geigy, Basel, Switzerland

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