COLLOID-CHEMICAL PROPERTIES OF AQUEOUS-SOLUTIONS OF PERFLUORONONANOIC ACID-DERIVATIVES AND MIXTURES | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

3860221

Reference Type

Journal Article

Title

COLLOID-CHEMICAL PROPERTIES OF AQUEOUS-SOLUTIONS OF PERFLUORONONANOIC ACID-DERIVATIVES AND MIXTURES

Author(s)

Sharovarnikov, AF; Uglov, AV

Year

1992

Is Peer Reviewed?

Yes

Journal

Colloid Journal
ISSN: 1061-933X
EISSN: 1608-3067

Volume

Issue

Page Numbers

901-905

Web of Science Id

WOS:A1992LJ15500019

Abstract

The surface-active, adsorption, and foaming properties of aqueous solutions of perfluorononanoic acid (PFNA) derivatives were investigated. It was found that PFNA-COO has the highest surface activity of the individual derivatives, and an equimolar mixture of PFNA-NH4 and PFNA-I have the highest activity among the mixtures. Solutions of PFNA derivatives have a low foaming capacity and negative spreading coefficient over heptane. The foaming capacity can be increased and the thermodynamic condition of spontaneous spreading of solutions over heptane can be ensured by using mixtures of PFNA derivatives and hydrocarbon SF.