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SUMMARY:Electrochemically Mediated Atom Transfer Radical Polymerization for
  Controlled Polymer Synthesis at Low Catalyst Loadings
LOCATION:Chemistry A101
TZID:America/Denver
DTSTART:20189201T000000
UID:2026-04-21-16-28-44@natsci.colostate.edu
DTSTAMP:20260421T162844
Description:Literature Seminar Abstract\n\nIn recent decades\, atom transfe
 r radical polymerization (ATRP) has become one of the most widely used con
 trolled radical polymerization methods due to its operational simplicity\,
  utilization of commercially available reagents\, and ability to synthesiz
 e polymers with complex architectures from a broad range of monomers. Orig
 inally\, ATRP made use of relatively large amounts of catalyst (1\,000 –
  10\,000 ppm)\, though recent methods\, such as activators regenerated by 
 electron transfer (ARGET) and initiators for continuous activator regenera
 tion (ICAR) ATRP\, have reduced catalyst loadings to as low as 10 ppm. To 
 achieve these reduced catalyst loadings\, reducing agents are used to rege
 nerate the active catalyst\, which would otherwise be lost as a result of 
 unavoidable termination reactions. However\, these reducing agents can par
 take in undesirable side reactions and reduce control over polymer chain g
 rowth\, necessitating a method to regenerate the catalyst without added re
 agents. To this end\, electrochemically mediated ATRP was developed\,1 ach
 ieving the same effect as ARGET and ICAR ATRP but through the use of elect
 rochemistry. Notably\, since the concentration of the active catalyst can 
 be controlled via the applied electrochemical potential\, this method also
  introduced a means for exerting temporal control in ATRP\, allowing a pol
 ymerization to be turned “on” and “off” without loss of control ov
 er polymer growth.\n(1) Magenau\, A. J. D.\; Strandwitz\, N. C.\; Gennaro\
 , A.\; Matyjaszewski\, K. Science\, 2011\, 332\, 81 – 84. 4:00 pm
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