title: Mechanogeneration of Acid from Oxime Sulfonates.
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.
authors.affiliation: Department of Chemistry and ¶Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States.
authors.forename: Chikkannagari
authors.initials: C
authors.lastname: Nagamani
authors.affiliation: Department of Chemistry and ¶Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States.
authors.forename: Huiying
authors.initials: H
authors.lastname: Liu
authors.affiliation: Department of Chemistry and ¶Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States.
authors.forename: Jeffrey S
authors.initials: JS
authors.lastname: Moore