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SUMMARY:Catalytic Chain Transfer Photopolymerization (CCTP2): the Good, the
  Bad, the Ugly
LOCATION:Chemistry A101
TZID:America/Denver
DTSTART:20261102T160000
UID:2026-11-03-19-26-57@natsci.colostate.edu
DTSTAMP:20261103T192657
Description:Seminar Abstract:\n\nPreviously\, we reported that the addition
  of catalytic quantities of cobalt(II) complexes to standard methacrylate-
 based formulations were found to reduce the crosslinking density\, glass t
 ransition temperature\, modulus and stiffness of the resultant photopolyme
 ric materials proportional to catalyst loading. We have dubbed this techni
 que catalytic chain transfer photopolymerization (CCTP2). Expansion of thi
 s technology\, however\, has been met with significant performance issues.
  These roadblocks prompted us to develop a working mechanistic model for C
 CTP2 using a combined experimental and computational approach\, which will
  be presented. Findings from these efforts informed the use of co-catalyst
 s\, additives and photoprocessing techniques that yield consistent perform
 ance\, increased functional group conversion and rate\; ultimately enablin
 g expansion of CCTP2 into stereolithographic additive manufacturing. Under
 standing the good\, the bad\, and the ugly\, mechanistically speaking\, ha
 s opened new\, unexplored avenues for the scalable preparation of crosslin
 ked photopolymeric materials with unique mechanical and material propertie
 s.\n\nSpeaker Bio:\n\nFollowing my PhD in synthetic organic/inorganic chem
 istry at The Scripps Research Institute (San Diego\, CA) in Prof. Valery F
 okin’s lab (of CuAAC fame)\, I was really bored. I decided to try someth
 ing scientifically new and went to the University of Colorado at Boulder (
 Boulder\, CO) to study material science and polymer chemistry in Prof. Chr
 is Bowman’s lab (of thiol-ene fame). I was less bored. I continued these
  lines of research (synthetic organic/inorganic\, polymer and material che
 mistry) in my independent career at the University of Denver. Current stat
 us: not bored at all. I love learning new things\, doing new things\, bein
 g proven wrong and feeling dumb. I have found that being a professor is a 
 great career for this. Outside of lab\, I try and spend as much time as I 
 can outside in beautiful Colorado with my wife\, dog and two young daughte
 rs (3 and 7)\, all of whom keep me painfully busy. 4:00 pm
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