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oai:www.ideals.illinois.edu:2142/84318 2023-07-11 col_2142_5131 col_2142_14789 com_2142_5130 com_2142_14788 com_2142_8903

Moore, Jeffrey S. Potisek, Stephanie 2015-09-25T22:13:56Z 2015-09-25T22:13:56Z 10000-01-01 2008 2008 An initial proof-of-concept experiment demonstrated that a mechanophore-linked polymer could be activated site-specifically via ultrasound-induced mechanical forces. Building on this idea, a method was established to synthesize mechanophore-linked poly(methyl acrylate) in an efficient manner using single electron transfer living radical polymerization (SET-LRP). The utility of this method was demonstrated with a spiropyran (SP) mechanophore that was found to undergo a mechanically induced 6pi-relectrocyclic ring opening. The mechanokinetics of the SP ring opening were probed and the reaction rate was found to increase linearly with increasing molecular weight. The analysis used for these studies will hopefully pave the way for future studies on the effect of molecular architecture on mechanochemical reactivity. Finally, we were able to realize a self-assessing mechanochromic material that directly couples mechanical energy to structural response, by incorporating a SP mechanophore into elastomeric and glassy materials. Made available in DSpace on 2015-09-25T22:13:56Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3337890.pdf: 4695420 bytes, checksum: f0811d1ff13bddfdd7d29b3c9f9113d5 (MD5) Previous issue date: 2008 Embargo set by: Seth Robbins for item 85599 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 143 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2008. http://hdl.handle.net/2142/84318 (MiAaPQ)AAI3337890 eng Chemistry, Polymer Mechanophore-Linked Polymers for Studying Mechanochemical Response text Chemistry Chemistry University of Illinois at Urbana-Champaign Dissertation Ph.D.