Help please with SI-ATRP (polymerization) of polyacrylamide

kikarone
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Running SI-ATRP (polymerization) of polyacrylamide. But my control reactions that does not have any free or surface bound initiators only monomer, CuCl, and Me6TREN is forming a lot of polymer at high molecular weights
Can CuCl and Me6TREN form radicals?
Reaction is at room temp and in water (not buffered)
 
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