Maskless Photoassisted Micropatterning of Self-Assembled Monolayers through Thiol–Ene Click Chemistry
Résumé
Reactive self-assembled monolayers are versatile interfaces that enable the design of chemical patterns with minimal topographical alteration. The development of efficient and fast strategies for generating such patterns is of relevance for the evolution of the field in terms of applications and of model substrates for fundamental studies. A strategy to functionalize reactive selfassembled monolayers is proposed in the present study. It takes advantage of photoinitiated thiol-ene reaction to obtain chemical micropatterns via a maskless irradiation. The functionalization procedure occurred in only a minute and a detailed characterization of those surfaces allowed understanding their physico-chemical nature and the reactions involved. This study shows that by varying parameters such as photoinitiator molecule and wavelength of irradiation, effective modification of self-assembled monolayers can be achieved.
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