Light-responsive azo-containing organogels. Issue 22 (26th May 2017)

• Record Type: Journal Article
• Authors: Ayer, M. A.; Schrettl, S.; Balog, S.; Simon, Y. C.; Weder, C.
• Is Part Of: Soft matter. Volume 13:Issue 22(2017)
• Page Start: 4017
• Page End: 4023
• Publication Date: 2017-05-26
• Subjects: Soft condensed matter -- Periodicals; 530.413
• DOI: 10.1039/c7sm00601b
• Languages: English
• ISSNs: 1744-683X

Abstract

Abstract : An azo-based cross-linker reacts with poly(vinyl alcohol) to afford stimuli-responsive organogels that display an irradiation-induced solid-to-liquid phase transition. Abstract : While azo compounds are widely employed as radical initiators, they have rarely been used as stimuli-responsive motifs in macromolecular constructs. In this study, an azo-based cross-linker was prepared and reacted with poly(vinyl alcohol) to afford a series of stimuli-responsive organogels. Irradiation of these materials with UV light causes de-cross-linking and triggers a solid-to-liquid phase transition. Model adhesives with de-bonding-on-demand capability based on this design were explored.