Peroxosalts initiated graft copolymerization of aniline onto rayon fiber -A kinetic approach

Oxidative chemical polymerization of aniline was carried out using peroxydi sulphate and peroxomonosulphate as a lone initiator in an aqueous acidic me dium in the presence of Rayon fiber. The Rayon fiber was tested for the che mical grafting of polyaniline onto it. The content of polyaniline (wt %) in the backbone was found to vary while varying the [M], [I], and (amount of Rayon fiber) during the polymerization of aniline. Various graft parameters like rate of grafting, % grafting, and % efficiency were calculated. Rate of homopolymerization was also followed for both cases. The chemical grafti ng was confirmed using FTIR spectroscopy, cyclic voltammetry, weight loss s tudy, and conductivity measurements. Probable mechanism has been proposed t o explain the experimental results obtained. (C) 2001 John Wiley & Sons, In c.