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Lookup NU author(s): Professor Mark GeogheganORCiD
This is the authors' accepted manuscript of an article that has been published in its final definitive form by American Chemical Society, 2020.
For re-use rights please refer to the publisher's terms and conditions.
Polyelectrolyte adhesives, either poly[2-(dimethylamino)ethyl methacrylate] or poly(methacrylic acid), functionalized with a surface-active calixresorcinarene were grafted onto silicon wafers. Adhesion studies on these grafted-to brushes using polyelectrolyte hydrogels of opposite charge showed that it is the calixresorcinarene, rather than adsorption of polyelectrolyte monomers, that adheres the brush to the silicon substrate. The adhesion measured was similar to that measured using polymers grafted from the surface, and was stronger than a control layer of poly(vinyl acetate) under the same test conditions. The limiting factor was determined to be adhesive failure at the hydrogel-brush interface, rather than the brush-silicon interface. Therefore, the adhesion has not been adversely affected by changing from a grafted-from to a grafted-to brush, demonstrating the possibility of a one-pot approach to creating switchable adhesives.
Author(s): Seddon WD, Alfhaid L, Dunbar ADF, Geoghegan M, Williams NH
Publication type: Article
Publication status: Published
Print publication date: 24/11/2020
Online publication date: 10/11/2020
Acceptance date: 02/11/2020
Date deposited: 12/11/2020
ISSN (print): 0743-7463
ISSN (electronic): 1520-5827
Publisher: American Chemical Society
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