Title of article :
FREE RADICAL GRAFT MODIFICATION OF POLYETHYLENE WITH METHACRYLIC ACID AND STYRENE MONOMER
Author/Authors :
Kamal, M. Shahzad University of Engineering Technology - Polymer and Process Engineering Department, Pakistan , Mamoor, G. M. University of Engineering Technology - Polymer and Process Engineering Department, Pakistan , Qamar, Nida University of Engineering Technology - Polymer and Process Engineering Department, Pakistan , Farooq, Muhammad University of Engineering Technology - Polymer and Process Engineering Department, Pakistan , Muhammad, S. University of Engineering Technology - Polymer and Process Engineering Department, Pakistan
Abstract :
Polar groups can be introduced on polyethylene by using polar monomer like acryl amide, acrylic acid and methacrylic acid. In present work binary monomermixture of methacrylic acid and styrene were grafted onto low density polyethylene in the presence of dicumyl peroxide (DCP) as an initiator. Grafted polyethylene was characterized by using differential scanning calorimetry (DSC), melt flow Indexer (MFI) and Fourier transform infrared spectroscope (FTIR). Low value of MFI as compared to virgin polyethylene, presence of carbonyl peaks in the spectrum of grafted polyethylene and higher endothermic peaks in thermogram of grafted polyethylene confirmed grafting of methacrylic acid and styrene onto polyethylene. MFI values at different loads were used for further rheological study of virgin and grafted polyethylene.
Keywords :
Degree of grafting , Methacrylic acid , Free radical , Vinyl monomer , DCP
Journal title :
Chemical Engineering Research Bulletin
Journal title :
Chemical Engineering Research Bulletin
