Aspects regarding the grafting of some lignosulfonates with acrylamide under a magnetic field

The kinetics of the graft polymerization of acrylamide onto some lignosulfo nate products in a continuous external magnetic field was studied. The regi stered magnetokinetic effects were correlated and associated with the condi tions of the classic reaction. The grafting process of acrylamide onto the macromolecular chains depending on the cation (Ca2+, Cr2+, Fe2+, Fe3+ and N H4+) present in the lignosulfonate structure and the magnetic field influen ce were corroborated and explained through the radical pairs mechanism. The augmentation of the graft polymerization rate in magnetic field and conver sion was ascribed to the singlet-triplet transitions in the radical pairs a s a result of the presence of the magnetic field.