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dc.contributor.authorTuna, Basak*
dc.contributor.authorBenkreira, Hadj*
dc.date.accessioned2017-09-28T14:23:11Z
dc.date.available2017-09-28T14:23:11Z
dc.date.issued2018-07
dc.identifier.citationTuna B and Benkreira H (2018) Chain extension of recycled PA6. Polymer Engineering & Science. 58(7): 1037-1042.en_US
dc.identifier.urihttp://hdl.handle.net/10454/13300
dc.descriptionYesen_US
dc.description.abstractRecycling of polymers is a necessity in our intensively consuming polymer world but the nature of polymers is such that they are prone to thermal degradation when re-extruded and this poses technical challenges to recycling. This article describes research that seeks to rebuild the structure of degraded PA6. We present data from controlled experiments with pristine pPA6 extruded to form a base recycle rPA6 to which we added two chain extenders, separately: one with anhydride multifunctionality (ANHY), highly reactive with amide groups and one with epoxy multifunctionality (EPOX), less reactive. We found from rheological data carried out in the linear viscoelastic region (so as to study structural changes) a striking difference in the ability of the chain extenders to rebuild structure: 306% increase in the complex viscosity of rPA6/ANHY compared to 25% in that of rPA6/EPOX of the base rPA6. Mechanical and thermal (DSC and TGA) tests confirmed the superior efficacy of the multifunctional anhydride chain extender. Beside the practical benefit that ensues from this research, it also provides a strategic platform to develop chain extenders for other degrading polymers on the basis of understanding the degradation chemical reaction and targeting the most reactive end group of the split chains.en_US
dc.language.isoenen_US
dc.rights© 2017 Wiley. Society of Plastics Engineers This is the peer reviewed version of the following article: Tuna B and Benkreira H (2017) Chain extension of recycled PA6. Polymer Engineering & Science. 58(7): 1037-1042, which has been published in final form at http://dx.doi.org/10.1002/pen.24663. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
dc.subjectExtrusion; Recycling; Degradation; Polyamide; Reactive processingen_US
dc.titleChain extension of recycled PA6en_US
dc.status.refereedYesen_US
dc.date.Accepted2017-07-03
dc.date.application2018-08-01
dc.typeArticleen_US
dc.type.versionAccepted Manuscripten_US
dc.identifier.doihttps://doi.org/10.1002/pen.24663
refterms.dateFOA2018-07-30T09:15:29Z


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