Selective formation of diblock copolymers using radical trap-assisted atom transfer radical coupling

2013 ◽  
Vol 51 (17) ◽  
pp. 3619-3626 ◽  
Author(s):  
William E. Butcher ◽  
Scott C. Radzinski ◽  
Eric S. Tillman
Keyword(s):  
Diblock Copolymers ◽  
Atom Transfer ◽  
Radical Trap ◽  
Radical Coupling ◽  
Selective Formation

Radical Trap-Assisted Atom Transfer Radical Coupling of Diblock Copolymers as a Method of Forming Triblock Copolymers

2016 ◽  
Vol 217 (22) ◽  
pp. 2473-2482 ◽  
Author(s):  
Benjamin D. McFadden ◽  
Maya M. Arce ◽  
Elizabeth M. Carnicom ◽  
Julie Herman ◽  
Jessica Abrusezze ◽  
...  
Keyword(s):  
Diblock Copolymers ◽  
Triblock Copolymers ◽  
Atom Transfer ◽  
Radical Trap ◽  
Radical Coupling

Dimerization of Poly(methyl methacrylate) Chains Using Radical Trap-Assisted Atom Transfer Radical Coupling

2014 ◽  
Vol 47 (7) ◽  
pp. 2226-2232 ◽  
Author(s):  
Christopher J. Valente ◽  
Autumn M. Schellenberger ◽  
Eric S. Tillman
Keyword(s):  
Methyl Methacrylate ◽  
Atom Transfer ◽  
Poly Methyl Methacrylate ◽  
Radical Trap ◽  
Radical Coupling

scholarly journals Effect of Trapping Agent and Polystyrene Chain End Functionality on Radical Trap-Assisted Atom Transfer Radical Coupling

Polymers ◽  
2014 ◽  
Vol 6 (11) ◽  
pp. 2737-2751 ◽  
Author(s):  
Elizabeth Carnicom ◽  
Jessica Abruzzese ◽  
Yacouba Sidibe ◽  
Kenneth Myers ◽  
Eric Tillman
Keyword(s):  
Atom Transfer ◽  
Radical Trap ◽  
Radical Coupling ◽  
Trapping Agent

scholarly journals Universal Chain-End Coupling Conditions for Brominated Polystyrenes, Polyacrylates, and Polymethacrylates

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 1001
Author(s):  
Joseph J. Andry ◽  
Jaenic J. Lee ◽  
Jessica Wu ◽  
Katherine Xia ◽  
Eric S. Tillman
Keyword(s):  
Copper Catalysts ◽  
Polymeric Chain ◽  
Atom Transfer ◽  
Controlled Polymerization ◽  
Reaction Conditions ◽  
Radical Trap ◽  
Radical Coupling ◽  
Radical Traps ◽  
Effective Reaction ◽  
Single Set

Atom transfer radical coupling (ATRC), performed with or without radical traps, has allowed for high extents of coupling (Xc) for a variety of brominated polymers, yet structurally different polymeric chain ends require unique reagents and reaction conditions. Inspired by a similar study that focused on universal conditions for the controlled polymerization of different monomers using atom transfer radical polymerization (ATRP), this work focuses on developing a single set of conditions (or conditions with as little variation as possible) that will achieve extents of coupling greater than 80% or end-brominated chains of polystyrene (PSBr), poly(methyl methacrylate) (PMMABr), and poly(methyl acrylate) (PMABr). The radical traps α-phenyl-tert-butylnitrone (PBN), 2-methyl-2-nitrosopropane (MNP), and nitrosobenzene (NBz) were chosen in this study, along with copper catalysts, reducing agents, and nitrogen-based ligands. Ultimately, a single set of effective reaction conditions was identified with the only difference being the radical trap used: MNP was effective for coupling PSBr and PMABr while NBz was necessary to achieve similarly high extents of coupling for PMMABr.

Synthesis of Macrocyclic Polymers Formed via Intramolecular Radical Trap-Assisted Atom Transfer Radical Coupling

2012 ◽  
Vol 1 (8) ◽  
pp. 1066-1070 ◽  
Author(s):  
Andrew F. Voter ◽  
Eric S. Tillman ◽  
Peter M. Findeis ◽  
Scott C. Radzinski
Keyword(s):  
Atom Transfer ◽  
Radical Trap ◽  
Radical Coupling ◽  
Macrocyclic Polymers
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