Abstract
The generation of acid under mechanical force is potentially useful for initiating proton-catalyzed changes in polymeric materials. Here we demonstrate that oxime sulfonates - known photoacid generators - are also acid generators when activated mechanically. NMR analysis of products suggests that the ultrasound-induced mechanochemical scission of the oxime sulfonate mechanophore also generates a ketone functional moiety, in addition to acid. Both acid and ketone moieties are useful for developing stress-responsive polymeric materials for autonomous self-healing applications.
Original language | English (US) |
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Pages (from-to) | 2540-2543 |
Number of pages | 4 |
Journal | Journal of the American Chemical Society |
Volume | 138 |
Issue number | 8 |
DOIs | |
State | Published - Mar 2 2016 |
ASJC Scopus subject areas
- Catalysis
- General Chemistry
- Biochemistry
- Colloid and Surface Chemistry