Artículo de Publicación Periódica:
Experimental and theoretical study of the use of multifunctional initiators in the high impact polystyrene bulk process

dc.contributor.authorBerkenwald, Emilio
dc.contributor.authorLaganá, María Laura
dc.contributor.authorMaffi, Juan M.
dc.contributor.authorAcuña, Pablo
dc.contributor.authorMorales Balado, Graciela Elizabeth
dc.contributor.authorEstenoz, Diana
dc.date.accessioned2019-06-14T21:18:43Z
dc.date.available2019-06-14T21:18:43Z
dc.date.issued2018-02
dc.description.abstract"The performance of three multifunctional peroxide initiators in a bulk high impact polystyrene (HIPS) process was experimentally and theoretically investigated. For the experimental work, a series of batch reactions was carried out, comprising the main stages of an industrial HIPS bulk process using multifunctional initiators with varying functionality and structure: DEKTP (cyclic trifunctional), PDP (cyclic bifunctional) and L331 (linear bifunctional). The theoretical work consisted of the development of a comprehensive, generic yet detailed mathematical model for bulk HIPS polymerization using multifunctional initiators. The model predicts the evolution of the main polymerization variables (including conversion, molecular weights, grafting efficiency) as well as the detailed molecular structure of the polymeric species (free polystyrene, residual polybutadiene and graft copolymer), and the melt flow index of the obtained HIPS. The model was adjusted and validated using experimental results, obtaining a good agreement between measured and predicted values. The model was used to theoretically evaluate the effect of the operating conditions on the molecular and physical characteristics of the obtained polymer. It was found that the use of multifunctional initiators leads to high polymerization rates and high molecular weights simultaneously, while promoting the grafting of styrene onto butadiene, generating a microstructure with salami-type morphologies."en
dc.identifier.issn0032-3888
dc.identifier.urihttp://ri.itba.edu.ar/handle/123456789/1616
dc.language.isoenen
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1002/pen.24547
dc.subjectPOLIMERIZACIONes
dc.subjectINICIADORES MULTIFUNCIONALESes
dc.subjectPOLIESTIRENOSes
dc.subjectPOLIBUTADIENOSes
dc.titleExperimental and theoretical study of the use of multifunctional initiators in the high impact polystyrene bulk processen
dc.typeArtículos de Publicaciones Periódicases
dc.typeinfo:eu-repo/semantics/acceptedVersion
dspace.entity.typeArtículo de Publicación Periódica
itba.description.filiationFil: Berkenwald, Emilio. Instituto Tecnológico de Buenos Aires; Argentina.
itba.description.filiationFil: Laganá, María Laura. Instituto Tecnológico de Buenos Aires; Argentina.
itba.description.filiationFil: Maffi, Juan M. Instituto Tecnológico de Buenos Aires; Argentina.
itba.description.filiationFil: Acuña, Pablo. Centro de Investigación en Química Aplicada; México.
itba.description.filiationFil: Morales Balado, Graciela Elizabeth. Centro de Investigación en Química Aplicada; México.
itba.description.filiationFil: Estenoz, Diana. Instituto Tecnológico de Buenos Aires; Argentina.
itba.description.filiationFil: Estenoz, Diana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
itba.description.filiationFil: Estenoz, Diana. Universidad Nacional del Litoral; Argentina.
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