Kinetics for Grafting of Acrylic Acid onto Chlorinated Polypropylene

Acrylic acid (AA) grafting onto chlorinated polypropylene (CPP) was carried out using toluene as solvent and benzoyl peroxide (BPO) as initiator by free radical polymerization. The effects of reaction temperature, concentration of acrylic acid monomer and benzoyl peroxide initiator on the rate of graft polymerization were studied. The rate of graft polymerization depended on the initiator and monomer concentrations. The actual rate constant of graft polymerization was found to obey the Arrhenius law and the activation energy E value was 40.6 kJ/mol. The kinetic equation for the grafting of acrylic acid onto chlorinated polypropylene was R = K [BPO] [AA] ^0.62 .