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Multimodal Polymeric Crosslinker Capable of Dual Crosslinking for Enhanced Cohesion, Adhesion, and Debonding of Waterborne Acrylic Adhesives

Multimodal Polymeric Crosslinker Capable of Dual Crosslinking for Enhanced Cohesion, Adhesion,... Waterborne acrylic adhesives, despite their widespread usage, often suffer from insufficient cohesive and adhesive properties, especially compared to solvent adhesives. Therefore, in order to improve the performance of waterborne adhesives, it is important to enhance and control these properties in a refined manner. For this purpose, herein presents a polymeric crosslinker presenting a variable number of methacrylic groups intended to control the degree of crosslinking. Polysuccinimide (PSI), which consists of a series of succinimidyl rings, is conveniently modified with methacrylic functional groups by ring‐opening nucleophilic reaction to develop methacrylic PSI (“MA‐PSI”). The cohesion and adhesion of MA‐PSI crosslinked adhesive is comprehensively controlled by both concentration and degree of methacrylic substitution (DSMA) of MA‐PSI. Moreover, the dual crosslinking, accomplished by the successive application of thermal‐ and photo‐crosslinking, further increases the cohesion to the extent that significantly reduces the adhesion strength, which is ideal for debonding applications. Overall, the multimodal MA‐PSI is a versatile crosslinker allowing broad controllability of cohesion and adhesion as well as imparting debonding capability. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Macromolecular Chemistry and Physics Wiley

Multimodal Polymeric Crosslinker Capable of Dual Crosslinking for Enhanced Cohesion, Adhesion, and Debonding of Waterborne Acrylic Adhesives

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References (44)

Publisher
Wiley
Copyright
© 2025 Wiley‐VCH GmbH
ISSN
1022-1352
eISSN
1521-3935
DOI
10.1002/macp.202400415
Publisher site
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Abstract

Waterborne acrylic adhesives, despite their widespread usage, often suffer from insufficient cohesive and adhesive properties, especially compared to solvent adhesives. Therefore, in order to improve the performance of waterborne adhesives, it is important to enhance and control these properties in a refined manner. For this purpose, herein presents a polymeric crosslinker presenting a variable number of methacrylic groups intended to control the degree of crosslinking. Polysuccinimide (PSI), which consists of a series of succinimidyl rings, is conveniently modified with methacrylic functional groups by ring‐opening nucleophilic reaction to develop methacrylic PSI (“MA‐PSI”). The cohesion and adhesion of MA‐PSI crosslinked adhesive is comprehensively controlled by both concentration and degree of methacrylic substitution (DSMA) of MA‐PSI. Moreover, the dual crosslinking, accomplished by the successive application of thermal‐ and photo‐crosslinking, further increases the cohesion to the extent that significantly reduces the adhesion strength, which is ideal for debonding applications. Overall, the multimodal MA‐PSI is a versatile crosslinker allowing broad controllability of cohesion and adhesion as well as imparting debonding capability.

Journal

Macromolecular Chemistry and Physics – Wiley

Published: May 1, 2025

Keywords: adhesion; cohesion; dual crosslinking; polysuccinimide; waterborne acrylic adhesives

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