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The Anthranilate Amide of 'Polyethylene Carboxylic Acid' Shows and Exceptionally Large Change with pH in Its Wettability by Water.

Author: Mark D Wilson; George M Whitesides; HARVARD UNIV CAMBRIDGE MASS DEPT OF CHEMISTRY.
Publisher: Ft. Belvoir Defense Technical Information Center DEC 1988.
Edition/Format:   Book : English
Database:WorldCat
Summary:
The amide formed from polyethylene carboxylic acid (PE-CO2H) and anthranilic acid shows an exceptionally large change in wettability by water with pH. The values of advancing contact angles theta(a) are theta(a)(pH 1) = 110 degs and theta(a)(pH 12) = 33 degs. Comparison of these values with those for corresponding amides of meta- and para-aminobenzoic acid and aniline suggest that both conformational mobility of the  Read more...
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Document Type: Book
All Authors / Contributors: Mark D Wilson; George M Whitesides; HARVARD UNIV CAMBRIDGE MASS DEPT OF CHEMISTRY.
OCLC Number: 227731865
Description: 13 p.

Abstract:

The amide formed from polyethylene carboxylic acid (PE-CO2H) and anthranilic acid shows an exceptionally large change in wettability by water with pH. The values of advancing contact angles theta(a) are theta(a)(pH 1) = 110 degs and theta(a)(pH 12) = 33 degs. Comparison of these values with those for corresponding amides of meta- and para-aminobenzoic acid and aniline suggest that both conformational mobility of the polar functional group at the solid-water interface and surface roughness contribute to this large value. (AW).

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