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Thermal frontal polymerization with a thermally released redox catalyst

Authors

  • Claudio Attardo Parrinello,

    1. Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803
    2. Parco D'Orleans II, Dipartimento Di Chimica Fisica, Viale Delle Scienze, Universita di Palermo, Palermo 90128, Italy
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  • Christopher O. Bounds,

    1. Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803
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  • Maria Liria Turco Liveri,

    1. Parco D'Orleans II, Dipartimento Di Chimica Fisica, Viale Delle Scienze, Universita di Palermo, Palermo 90128, Italy
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  • John A. Pojman

    Corresponding author
    1. Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803
    • Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803
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Abstract

We studied thermal frontal polymerization using a redox system in an attempt to lower the temperature of the frontally polymerizable system while increasing the front velocity so as to obtain a self-sustaining front in a thinner layer than without the redox components. A cobalt-containing polymer with a melting point of 63 °C (Intelimer 6050X11) and cumene hydroperoxide were used with a triacrylate. The use of the Intelimer decreased the front velocity but allowed fronts to propagate in thinner layers and with more filler while still having a pot life of days. Nonplanar modes of propagation occurred. Fronts propagated faster when 6-O-palmitoyl-L-ascorbic acid was used as a reductant. Interestingly, fronts were also faster with the reductant even without the Intelimer if kaolin clay was the filler; however, the pot life was significantly reduced. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012

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