Experimental and theoretical study of the use of multifunctional initiators in the high impact polystyrene bulk process

"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...

Descripción completa

Detalles Bibliográficos
Autores principales: Berkenwald, Emilio, Laganá, María Laura, Maffi, Juan M., Acuña, Pablo, Morales Balado, Graciela Elizabeth, Estenoz, Diana
Formato: Artículos de Publicaciones Periódicas acceptedVersion
Lenguaje:Inglés
Publicado: 2019
Materias:
POLIMERIZACION
INICIADORES MULTIFUNCIONALES
POLIESTIRENOS
POLIBUTADIENOS
Acceso en línea:http://ri.itba.edu.ar/handle/123456789/1616
Aporte de:
Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA) de Instituto Tecnológico de Buenos Aires (ITBA)
id I32-R138-123456789-1616
record_format dspace
spelling I32-R138-123456789-16162022-12-07T13:05:51Z Experimental and theoretical study of the use of multifunctional initiators in the high impact polystyrene bulk process Berkenwald, Emilio Laganá, María Laura Maffi, Juan M. Acuña, Pablo Morales Balado, Graciela Elizabeth Estenoz, Diana POLIMERIZACION INICIADORES MULTIFUNCIONALES POLIESTIRENOS POLIBUTADIENOS "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." 2019-06-14T21:18:43Z 2019-06-14T21:18:43Z 2018-02 Artículos de Publicaciones Periódicas info:eu-repo/semantics/acceptedVersion 0032-3888 http://ri.itba.edu.ar/handle/123456789/1616 en info:eu-repo/semantics/altIdentifier/doi/10.1002/pen.24547 application/pdf
institution Instituto Tecnológico de Buenos Aires (ITBA)
institution_str I-32
repository_str R-138
collection Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA)
language Inglés
topic POLIMERIZACION
INICIADORES MULTIFUNCIONALES
POLIESTIRENOS
POLIBUTADIENOS
spellingShingle POLIMERIZACION
INICIADORES MULTIFUNCIONALES
POLIESTIRENOS
POLIBUTADIENOS
Berkenwald, Emilio
Laganá, María Laura
Maffi, Juan M.
Acuña, Pablo
Morales Balado, Graciela Elizabeth
Estenoz, Diana
Experimental and theoretical study of the use of multifunctional initiators in the high impact polystyrene bulk process
topic_facet POLIMERIZACION
INICIADORES MULTIFUNCIONALES
POLIESTIRENOS
POLIBUTADIENOS
description "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."
format Artículos de Publicaciones Periódicas
acceptedVersion
author Berkenwald, Emilio
Laganá, María Laura
Maffi, Juan M.
Acuña, Pablo
Morales Balado, Graciela Elizabeth
Estenoz, Diana
author_facet Berkenwald, Emilio
Laganá, María Laura
Maffi, Juan M.
Acuña, Pablo
Morales Balado, Graciela Elizabeth
Estenoz, Diana
author_sort Berkenwald, Emilio
title Experimental and theoretical study of the use of multifunctional initiators in the high impact polystyrene bulk process
title_short Experimental and theoretical study of the use of multifunctional initiators in the high impact polystyrene bulk process
title_full Experimental and theoretical study of the use of multifunctional initiators in the high impact polystyrene bulk process
title_fullStr Experimental and theoretical study of the use of multifunctional initiators in the high impact polystyrene bulk process
title_full_unstemmed Experimental and theoretical study of the use of multifunctional initiators in the high impact polystyrene bulk process
title_sort experimental and theoretical study of the use of multifunctional initiators in the high impact polystyrene bulk process
publishDate 2019
url http://ri.itba.edu.ar/handle/123456789/1616
work_keys_str_mv AT berkenwaldemilio experimentalandtheoreticalstudyoftheuseofmultifunctionalinitiatorsinthehighimpactpolystyrenebulkprocess
AT laganamarialaura experimentalandtheoreticalstudyoftheuseofmultifunctionalinitiatorsinthehighimpactpolystyrenebulkprocess
AT maffijuanm experimentalandtheoreticalstudyoftheuseofmultifunctionalinitiatorsinthehighimpactpolystyrenebulkprocess
AT acunapablo experimentalandtheoreticalstudyoftheuseofmultifunctionalinitiatorsinthehighimpactpolystyrenebulkprocess
AT moralesbaladogracielaelizabeth experimentalandtheoreticalstudyoftheuseofmultifunctionalinitiatorsinthehighimpactpolystyrenebulkprocess
AT estenozdiana experimentalandtheoreticalstudyoftheuseofmultifunctionalinitiatorsinthehighimpactpolystyrenebulkprocess
_version_ 1765660757444263936

Ejemplares similares