FRACTIONATION OF CONDENSATES OF SODIUM NAPHTHALENE 2-SULFONATE AND FORMALDEHYDE BY GEL-PERMEATION CHROMATOGRAPHY | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

5965695

Reference Type

Journal Article

Title

FRACTIONATION OF CONDENSATES OF SODIUM NAPHTHALENE 2-SULFONATE AND FORMALDEHYDE BY GEL-PERMEATION CHROMATOGRAPHY

Author(s)

Garvey, MJ; Tadros, TF

Year

1972

Volume

250

Issue

Page Numbers

967-972

Language

English

DOI

10.1007/BF01498967

Web of Science Id

WOS:A1972O578800010

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-6244263065&doi=10.1007%2fBF01498967&partnerID=40&md5=5199d3b6c62ce2ac98edbad5bbbf6749
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Abstract

The condensates of sodium naphthalene 2-sulphonate and formaldehyde, have been fractionated by gel permeation chromatography on a scale large enough for the separation of 20 g. samples. The fractions were characterised by molecular weight and relative viscosity. The separation order was found to be unusual, this being nonamer, octamer, (heptamer) monomer, dimer... hexamer (heptamer). The reason for this separation order is, we believe, a combination of adsorption and electrostatic repulsion of the polyelectrolyte by the "Sephadex" gel. © 1972 Dr. Dietrich Steinkopff Verlag.