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Rewritable Polymer Brush Micropatterns Grafted by Triazolinedione Click Chemistry

2015; Wiley; Volume: 54; Issue: 44 Linguagem: Inglês

10.1002/anie.201506361

1521-3773

Oliver Roling, Kevin De Bruycker, Benjamin Vonhören, Lucas Stricker, Martin Körsgen, Heinrich F. Arlinghaus, Bart Jan Ravoo, Filip Du Prez,

Polymer Surface Interaction Studies

Triazolinedione (TAD) click reactions were combined with microcontact chemistry to print, erase, and reprint polymer brushes on surfaces. By patterning substrates with a TAD-tagged atom-transfer radical polymerization initiator (ATRP-TAD) and subsequent surface initiated ATRP, it was possible to graft micropatterned polymer brushes from both alkene- and indole-functionalized substrates. As a result of the dynamic nature of the Alder-ene adduct of TAD and indole at elevated temperatures, the polymer pattern could be erased while the regenerated indole substrate could be reused to print new patterns. To demonstrate the robustness of the methodology, the write-erase cycle was repeated four times.