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

Authors

  • P. Acuña,

    1. Departamento de Sintesis de Polímero, Centro de Investigación en Química Aplicada (CIQA), Saltillo, Coahuila 25253, México
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  • G. Morales,

    Corresponding author
    1. Departamento de Sintesis de Polímero, Centro de Investigación en Química Aplicada (CIQA), Saltillo, Coahuila 25253, México
    • Centro de Investigación en Química Aplicada (CIQA), Saltillo, Coahuila 25253, México
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  • R. Díaz de León

    1. Departamento de Sintesis de Polímero, Centro de Investigación en Química Aplicada (CIQA), Saltillo, Coahuila 25253, México
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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

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