Publications [#232112] of Stephen L Craig

Journal Articles

1. Kean, ZS; Gossweiler, GR; Kouznetsova, TB; Hewage, GB; Craig, SL, A coumarin dimer probe of mechanochemical scission efficiency in the sonochemical activation of chain-centered mechanophore polymers., Chemical communications (Cambridge, England), vol. 51 no. 44 (June, 2015), pp. 9157-9160, ISSN 1359-7345 [doi]
   (last updated on 2026/01/17)

   Abstract:
   Here we present a coumarin dimer (CD) mechanophore that, when embedded near the mid-chain of poly(methyl acrylate) polymers, activates under pulsed ultrasound conditions to yield coumarin chain-end functional polymers. Quantitative photochemical scission of the CD polymers provides a reference against which the activation efficiency of chain-centered mechanophores in polymers synthesized by controlled/living radical polymerization (CRP) can be assessed. Activation efficiency is characterized with respect to the polymer molecular weight (MW), polydispersity index (PDI), and distribution of mechanophores along the backbone.