Optimal periodic control of a continuous “living” anionic polymerization. III. Presence of impurities in the monomer feed

Authors

  • J. R. Vega,

    1. INTEC, CONICET and Universidad Nacional del Litoral, C.C. 91, (3000) Santa Fe, Argentina
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  • G. L. Frontini,

    1. INTEC, CONICET and Universidad Nacional del Litoral, C.C. 91, (3000) Santa Fe, Argentina
    Current affiliation:
    1. INTEMA (CONICET and Universidad Nacional de Mar del Plata), (7600) Mar del Plata, Argentina
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  • G. R. Meira

    Corresponding author
    1. INTEC, CONICET and Universidad Nacional del Litoral, C.C. 91, (3000) Santa Fe, Argentina
    • INTEC, CONICET and Universidad Nacional del Litoral, C.C. 91, (3000) Santa Fe, Argentina
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Abstract

Previous publications have demonstrated that when “living” anionic polymerizations are carried out in continuous reactors under forced periodic operation of the feed flows then: (a) In the absence of impurities and within certain limitations, it is possible to produce polymers with any prespecified values of the number-average chain length, the polydispersity and the polymer production; and (b) even small concentrations of impurities in the monomer feed, drastically inhibit such a possibility. In this work, the optimal periodic control problem has been reformulated, including the presence of impurities. In all cases, the flexibility of the control is reduced with respect to the impurities-free case.

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