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

Filgueiras, V; Vouyiouka, SN; Papaspyrides, CD; Lima, EL; Pinto, JC

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	https://dspace.lib.ntua.gr/xmlui/handle/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