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Information Seminar Paper

Title

EFFECT OF PE-G-MA ON THE FRIEDEL-CRAFTS (FC) ALKYLATION REACTION IN POLYETHYLENE/POLYSTYRENE BLENDS

Pages

 Start Page | End Page

Keywords

FRIEDEL-CRAFTS (FC) REACTION 

Abstract

 THE REACTIVE COMPATIBILIZATION OF PE/PS BLENDS USING FRIEDEL–CRAFTS ALKYLATION REACTION IN THE PRESENCE AND ABSENCE OF PE-G-MA WAS STUDIED. THE AMOUNT OF PE-G-PS COPOLYMER FORMED AT THE INTERPHASE OF THE BLENDS WAS QUANTIFIED BY SELECTIVE SOLVENT EXTRACTION AND FTIR ANALYSIS. MORPHOLOGY AND FLOW BEHAVIOR OF THE BLENDS WAS STUDIED USING DYNAMIC RHEOMETRY AND SEM TECHNIQUES, RESPECTIVELY. THE PRESENCE OF PE-G-MA DECREASED THE GRAFTING DEGREE AT LOW CATALYST CONTENTS BUT INCREASED IT AT HIGHER CONTENTS. THE LATTER WAS ATTRIBUTED TO THE ENVOLVING OTHER REACTIONS SUCH AS CROSLINKING AND/OR CHAINBRANCHING IN THE PRESENCE OF PE-G-MA. REACTIVE COMPATIBILIZATION LED TO BETTER INTERFACIAL ADHESION BETWEEN THE PE MATRIX AND PS DISPERSED PHASES DUE TO THE FORMATION OF PE-G-PS COPOLYMER WHICH WAS MORE EFFECTIVE IN THE PRESENCE OF PE-G-MA. THE RESULTS FINALLY SHOWED THAT PE-G-MA CAN EFFECTIVELY DECREASE THE EXTENT OF DEGRADATION REACTIONS, LEADING TO HIGHER INCREASE IN MECHANICAL PROPERTIES.

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