Rewritable Polymer Brush Micropatterns Grafted by Triazolinedione Click Chemistry.
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.
Organisch-Chemisches Institut, Center for Soft Nanoscience and Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster (Germany).
Oliver
O
Roling
Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4-bis, B-9000 Gent (Belgium).
Kevin
K
De Bruycker
Organisch-Chemisches Institut, Center for Soft Nanoscience and Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster (Germany).
Benjamin
B
Vonhören
Organisch-Chemisches Institut, Center for Soft Nanoscience and Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster (Germany).
Lucas
L
Stricker
Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Strasse 10, 48149 Münster (Germany).
Martin
M
Körsgen
Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Strasse 10, 48149 Münster (Germany).
Heinrich F
HF
Arlinghaus
Organisch-Chemisches Institut, Center for Soft Nanoscience and Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster (Germany). b.j.ravoo@uni-muenster.de.
Bart Jan
BJ
Ravoo
Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4-bis, B-9000 Gent (Belgium). filip.duprez@ugent.be.
Filip E
FE
Du Prez
click chemistry; polymer brushes; rewritable materials; soft lithography; surface chemistry