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dc.contributor.author
Meira, Gregorio Raul
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dc.contributor.author
Kiparissides, Costas
dc.contributor.other
Asua, José M.
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dc.date.available
2021-03-18T15:15:49Z
dc.date.issued
2007
dc.identifier.citation
Meira, Gregorio Raul; Kiparissides, Costas; Free Radical Polymerization: Heterogeneous Systems; Wiley Blackwell Publishing, Inc; 2007; 179-208
dc.identifier.isbn
978-0-470-69142-7
dc.identifier.uri
http://hdl.handle.net/11336/128526
dc.description.abstract
Bulk free-radical polymerizations are carried out in the absence of a dispersion medium, and without (or with a very little) solvent. Many technical polymers such as LDPE, LLDPE, PVC, PS, HIPS, PMMA, nylon, and polyester are manufactured in bulk processes. Compared with suspension, emulsion, or solution processes, bulk polymerizations exhibit a higher reactor performance, higher product purity, and reduced transfer reactions to solvents or additives. The disadvantages are related with the high process viscosity, which in turn generates problems of heat removal, mixing, pumping, and reactor wall fouling, by film formation. Some bulk polymerizations (e.g., the production of crystal or general purpose PS) are homogeneous because the produced polymer is amorphous and completely soluble in the monomer. In contrast, PVC soon precipitates from its monomer. In the HIPS process, the heterogeneity results from the incompatibility between the initial PB prepolymer and the generated PS chains. Many thermoplastics are heterogeneous (or heterophase), because they contain liquid or rubber dispersions that improve their physical properties with respect to those of the continuous brittle phase. Examples of this are the softening of PVC by the presence of phthalate droplets, and the improved toughness of HIPS or ABS by addition of PB-based rubber particles. This chapter will focus on the (heterogeneous, bulk, and free-radical) polymerizations leading to the production of HIPS and PVC.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject.classification
Ingeniería Química
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dc.subject.classification
Ingeniería Química
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Free Radical Polymerization: Heterogeneous Systems
dc.type
info:eu-repo/semantics/publishedVersion
dc.type
info:eu-repo/semantics/bookPart
dc.type
info:ar-repo/semantics/parte de libro
dc.date.updated
2020-12-22T16:40:57Z
dc.journal.pagination
179-208
dc.journal.pais
Reino Unido
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dc.description.fil
Fil: Meira, Gregorio Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.description.fil
Fil: Kiparissides, Costas. Aristotle University of Thessaloniki; Grecia
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.wiley.com/en-ar/Polymer+Reaction+Engineering-p-9780470691427
dc.conicet.paginas
367
dc.source.titulo
Polymer Reaction Engineering
dc.conicet.nroedicion
1ra
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