Solid state post-polymerization of PA 6,6: The effect of sodium 5-sulfoisophthalic acid

Vouyiouka, SN; Papaspyrides, CD; Weber, JN; Marks, DN

dc.contributor.author	Vouyiouka, SN	en
dc.contributor.author	Papaspyrides, CD	en
dc.contributor.author	Weber, JN	en
dc.contributor.author	Marks, DN	en
dc.date.accessioned	2014-03-01T01:27:16Z
dc.date.available	2014-03-01T01:27:16Z
dc.date.issued	2007	en
dc.identifier.issn	0032-3861	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18370
dc.subject	Ionomers	en
dc.subject	Nylon 6,6	en
dc.subject	Solid state polymerization	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Inert gases	en
dc.subject.other	Ionomers	en
dc.subject.other	Polymerization	en
dc.subject.other	Reaction kinetics	en
dc.subject.other	Solid state reactions	en
dc.subject.other	Nylon 6,6	en
dc.subject.other	Polyhexamethyleneadipamide	en
dc.subject.other	Solid state polymerization	en
dc.subject.other	Nylon polymers	en
dc.subject.other	copolymer	en
dc.subject.other	dyeability	en
dc.subject.other	flow rate	en
dc.subject.other	homopolymer	en
dc.subject.other	monomer	en
dc.subject.other	polymerization	en
dc.subject.other	synthetic polyamide	en
dc.title	Solid state post-polymerization of PA 6,6: The effect of sodium 5-sulfoisophthalic acid	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.polymer.2007.06.031	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.polymer.2007.06.031	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	Solid state polymerization (SSP) starting from polyhexamethyleneadipamide (PA 6,6) precursors was studied in the temperature range of 160-200 degrees C in a solid bed reactor. Process parameters, such as temperature, time and inert gas flow rate were investigated, meanwhile emphasis was given on the effect of a dyeability modifier (sodium 5-sulfoisophthalic acid, NaSIPA) on the SSP rate, due to the importance of the pertinent sulfonated ionomers in the polyamide industry. Under the specific experimental conditions, the copolyamides with NaSIPA exhibited lower SSP rates than PA 6,6 homopolymer and their retarding behavior was found proportional to the comonomer content. A possible retardation mechanism related to the NaSIPA ionic species has been suggested and verified through modifying the kinetics so as to describe and predict the copolyamide SSP performance. (c) 2007 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Polymer	en
dc.identifier.doi	10.1016/j.polymer.2007.06.031	en
dc.identifier.isi	ISI:000249085000010	en
dc.identifier.volume	48	en
dc.identifier.issue	17	en
dc.identifier.spage	4982	en
dc.identifier.epage	4989	en