Solid-state polymerization of poly(ethylene terephthalate): The effect of water vapor in the carrier gas

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dc.contributor.author Filgueiras, V en
dc.contributor.author Vouyiouka, SN en
dc.contributor.author Papaspyrides, CD en
dc.contributor.author Lima, EL en
dc.contributor.author Pinto, JC en
dc.date.accessioned 2014-03-01T01:37:06Z
dc.date.available 2014-03-01T01:37:06Z
dc.date.issued 2011 en
dc.identifier.issn 1438-7492 en
dc.identifier.uri http://hdl.handle.net/123456789/21446
dc.subject gas-side mass transfer diffusion en
dc.subject nitrogen recycling en
dc.subject poly(ethylene terephthalate) en
dc.subject solid state polymerization en
dc.subject water vapor en
dc.subject.classification Materials Science, Multidisciplinary en
dc.subject.classification Polymer Science en
dc.subject.other Carrier gas en
dc.subject.other Carrier gas flow rates en
dc.subject.other Effect of water en
dc.subject.other Humidity levels en
dc.subject.other Intrinsic viscosity en
dc.subject.other Particle diffusion en
dc.subject.other Plant operations en
dc.subject.other Polymerization reaction en
dc.subject.other Product diffusion en
dc.subject.other Recycling cycle en
dc.subject.other solid state polymerization en
dc.subject.other Volatile by-products en
dc.subject.other Water vapor contents en
dc.subject.other Atmospheric humidity en
dc.subject.other Byproducts en
dc.subject.other Curricula en
dc.subject.other Diffusion en
dc.subject.other Ethylene en
dc.subject.other Gas plants en
dc.subject.other Gases en
dc.subject.other Nitrogen en
dc.subject.other Polyethylene terephthalates en
dc.subject.other Polymerization en
dc.subject.other Polymers en
dc.subject.other Wastewater reclamation en
dc.subject.other Water content en
dc.subject.other Water vapor en
dc.subject.other Water recycling en
dc.title Solid-state polymerization of poly(ethylene terephthalate): The effect of water vapor in the carrier gas en
heal.type journalArticle en
heal.identifier.primary 10.1002/mame.201000201 en
heal.identifier.secondary http://dx.doi.org/10.1002/mame.201000201 en
heal.language English en
heal.publicationDate 2011 en
heal.abstract SSP of PET has been thoroughly investigated under the regimes of chemical reaction and particle diffusion control. However, the majority of industrial PET plants operate under conditions of surface by-product diffusion control, mainly due to recycling cycles of the carrier gas. The presence of residual volatile by-products in the carrier gas (especially water) may affect adversely the polymerization reaction and the resulting polymer quality. For this reason, the effects caused by varying water vapor content of the carrier gas on the course of the PET SSP are analyzed, with emphasis on the intrinsic viscosity. The presence of small amounts of water in the carrier gas is found to exert a pronounced effect on the course of polymerization, leading to significant reduction of the molar masses of the final product. The effects caused by carrier gas characteristics during PET solid-state polymerization were analyzed with emphasis on the final product molecular weight. The significance of gas-side by-products mass transfer was quantified when varying the carrier gas flow rate and the humidity level, the latter corresponding to industrial plant operation conditions due to the performed carrier gas recycling. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. en
heal.publisher WILEY-V C H VERLAG GMBH en
heal.journalName Macromolecular Materials and Engineering en
dc.identifier.doi 10.1002/mame.201000201 en
dc.identifier.isi ISI:000287163600002 en
dc.identifier.volume 296 en
dc.identifier.issue 2 en
dc.identifier.spage 113 en
dc.identifier.epage 121 en

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