✦ LIBER ✦

Polymer characterization by coupling gel-permeation chromatography and automatic viscometry

✍ Scribed by Goedhart, D. ;Opschoor, A.

Publisher: Wiley (John Wiley & Sons)
Year: 1970
Tongue: English
Weight: 306 KB
Volume: 8
Category: Article
ISSN: 0449-2978
DOI: 10.1002/pol.1970.160080716

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✦ Synopsis

Abstract

A method is proposed for use of the universal calibration curve, i.e., the product of molecular weight and intrinsic viscosity versus retention volume, in calculating the molecular weight distribution of a polymer from gel‐permeation chromatography (GPC) when the Mark‐Houwink relation of the polymer in the solvent used for the GPC is unknown. This is achieved by measuring the viscosity of each fraction with an automatic capillary tube viscometer. Application of this technique to poly(vinyl chloride) and poly(vinyl acetate) proved to be successful.

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