The influence of the degree of neutralization, the ionic moiety, and the counterion on water-dispersible polyurethanes | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

7945998

Reference Type

Journal Article

Title

The influence of the degree of neutralization, the ionic moiety, and the counterion on water-dispersible polyurethanes

Author(s)

Hourston, DJ; Williams, GD; Satguru, R; Padget, JC; Pears, D

Year

1999

Is Peer Reviewed?

Yes

Journal

Journal of Applied Polymer Science
ISSN: 0021-8995
EISSN: 1097-4628

Volume

Issue

Page Numbers

556-566

Language

English

DOI

10.1002/(SICI)1097-4628(19991017)74:3<556::AID-APP10>3.0.CO;2-D

Web of Science Id

WOS:000082252600010

Abstract

A number of polyurethane anionomers based on isophorone diisocyanate, polytetrahydrofuran, and cyclohexane dimethanol were prepared as aqueous dispersions. The dispersions were stabilized by the use of an internal emulsifier. The principal ionic moiety used was dimethylol propanoic acid, but dimethylol butanoic acid and an experimental suphonate diol sodium salt were also used. The consequence of the neutralization step, the degree of neutralization, the type of ionic component, and the type of counterion were investigated for their effect on the mechanical and colloidal properties of the polyurethanes. Dynamic mechanical thermal analysis, tensiometry, solvent spot testing, and swelling studies were used for the characterization of the materials.

Keywords

ionomers; polyurethane; water dispersibility; structure-property relations