Study on kinetics of acrylamide polymerization initiated by potassium ditelluratocuprate (III) in alkaline medium

摘要

A novel initiator, potassium ditelluratocuprate (III) (DTC) was employed to initiate homopolymerization of acrylamide (AM) in aqueous alkaline medium. The results indicate that the equation of the polymerization rate (R-p) is as follows: R-p = k[AM](1.63)[DTC](0.61) and that the overall activation energy of AM polymerization is 26.0 kJ/mol, the polymer molecular weight decreases with the increasing DTC and increases with the increasing AM. The effects of various reaction conditions on the polymerization rate were also studied. The initiation mechanism was proposed and verified by Fourier transform infrared (FTIR) and H-1 nuclear magnetic resonance (H-1 NMR). [References: 31]