Grafting of polypropylene with P-hydroxy-N-phenyl maleimide to use it as a coupling agent in preparation of polypropylene/layered silicates nanocomposites

International Conference on Polymer Science & Engineering

August 22-24, 2016 New Orleans, USA

Alaa I Eid, Marwa E Mohamed, Gamal R Saad and Magdi M Naoum

Cairo University, Egypt
Central Metallurgical Research and Development Institute, Egypt

Posters & Accepted Abstracts: J Material Sci Eng

Abstract :

A series of polypropylenes grafted with P-hydroxy-N-phenyl maleimide (P-H-N-PMM) were prepared by mixing in a laboratory high speed mixer followed by reactive extrusion in a twin screw extruder with different ratio of (P-H-NPMM) varied from 1% wt up to 4% wt and a fixed percent of dicumyl peroxide initiator. The amount of grafted P-hydroxy- N-phenyl maleimide, the viscosity, the molecular weight distribution and the transition temperatures and enthalpies were measured. The effect of the initial percent of (P-H-N-PMM) on these parameters was characterized. The results showed that the grafting percentage increases by increasing the percent of (P-H-N-PMM) from 1% wt to 3% wt; but by increasing the percent up to 4% wt, the grafting percentage starts to decrease due to homopolymerization of (P-H-N-PMM) during processing. Molecular weight and viscosity decreased with increasing percent of (P-H-N-PMM). Finally, it was found that the melting and crystallization parameters (temperatures, enthalpies) were modified during grafting. The results indicate that the addition, in ratio, from 1 to 3% of polypropylene grafted with P-hydroxy-N-phenyl maleimide [PP-g-(P-H-N-PMM)], can be used as a good compatibilizer or coupling agent in preparation of polypropylene/layered silicates nanocomposites.

Biography :

Email: eidalaa@gmail.com