Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 44, Pages 13126-13129Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201506361
Keywords
click chemistry; polymer brushes; rewritable materials; soft lithography; surface chemistry
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Funding
- Deutsche Forschungsgemeinschaft (DFG) [IRTG 1143]
- Graduate School of Chemistry in Munster
- Research Foundation-Flanders (FWO)
- Belgian Science Policy Office Interuniversity Attraction Poles (IAP) program [IAP 7/05]
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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.
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