Catalytic performance and nanoclay effects on post-solid-state polyamidation: The case of polyamide 6,6 nanocomposites

Boussia, AC; Konstantakopoulou, MO; Vouyiouka, SN; Papaspyrides, CD

dc.contributor.author	Boussia, AC	en
dc.contributor.author	Konstantakopoulou, MO	en
dc.contributor.author	Vouyiouka, SN	en
dc.contributor.author	Papaspyrides, CD	en
dc.date.accessioned	2014-03-01T02:08:21Z
dc.date.available	2014-03-01T02:08:21Z
dc.date.issued	2012	en
dc.identifier.issn	00218995	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29642
dc.subject	catalysts	en
dc.subject	clay	en
dc.subject	nanocomposites	en
dc.subject	polyamides	en
dc.subject	solid-state polymerization	en
dc.subject.other	Catalytic performance	en
dc.subject.other	Nano clays	en
dc.subject.other	Nanofiller	en
dc.subject.other	Physical adsorption	en
dc.subject.other	Polyamide 6	en
dc.subject.other	Post-polymerization	en
dc.subject.other	Prepolymers	en
dc.subject.other	Solid state polymerization	en
dc.subject.other	Adsorption	en
dc.subject.other	Amides	en
dc.subject.other	Catalysts	en
dc.subject.other	Clay	en
dc.subject.other	Phosphorus	en
dc.subject.other	Polyamides	en
dc.subject.other	Polycondensation	en
dc.subject.other	Reaction rates	en
dc.subject.other	Nanocomposites	en
dc.title	Catalytic performance and nanoclay effects on post-solid-state polyamidation: The case of polyamide 6,6 nanocomposites	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/app.35657	en
heal.identifier.secondary	http://dx.doi.org/10.1002/app.35657	en
heal.publicationDate	2012	en
heal.abstract	The catalytic performance of common additives was explored during the solid-state postpolymerization (SSP) of polyamide 6,6 prepolymers. In particular, the influence of a phosphorous-containing antioxidant and its combination with a nanofiller (clay) was examined during the SSP reaction at 200°C for times up to 4 h. The antioxidant, at a concentration of 1 phr, was found to strongly accelerate the SSP process by more than quintupling (435%) the reaction rate. The antioxidant-clay system (1 phr each) also catalyzed the SSP process and resulted in a near tripling (197%) of the reaction rate; this implied, however, a reduced single antioxidant catalytic performance. The latter was attributed to counteractions involving the diffusivity of polycondensation water versus clay hydrophilicity and to physical adsorption phenomena between the antioxidant and the clay. © 2012 Wiley Periodicals, Inc.	en
heal.journalName	Journal of Applied Polymer Science	en
dc.identifier.doi	10.1002/app.35657	en
dc.identifier.volume	125	en
dc.identifier.issue	SUPPL. 1	en
dc.identifier.spage	E320	en
dc.identifier.epage	E326	en