Synthesis and characterization of high-impact polystyrene using a multifunctional cyclic peroxide as the initiator

✍ Scribed by P. Acuña; G. Morales; R. Díaz de León

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 680 KB
• Volume: 114
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.30932

✦ Synopsis

Abstract

This work deals with the synthesis of high‐impact polystyrene (HIPS) using a novel cyclic multifunctional initiator, the diethyl ketone triperoxide (DEKTP), analyzing its effect on the prepolymerization step and its influence over the HIPS final properties. DEKTP showed a low selectivity toward grafting reactions at any of the concentrations of initiator and temperatures evaluated, and when it was used under a temperature ramp (120–130°C, heating rate = 2°C/min), the synthesis of HIPS was possible with an adequate development of morphology and impact strength (i.e., 67 J/m) depending on DEKTP concentration. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009