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dc.contributor.authorTuna, Basak*
dc.contributor.authorBenkreira, Hadj*
dc.date.accessioned2019-04-29T15:34:59Z
dc.date.available2019-04-29T15:34:59Z
dc.date.issued2019-06-03
dc.identifier.citationTuna B and Benkreira H (2019) Chain extension of polyamide 6/organoclay nanocomposites. Polymer Engineering and Science. 59(6): 1233-1241.en_US
dc.identifier.urihttp://hdl.handle.net/10454/16992
dc.descriptionYesen_US
dc.description.abstractThermal degradation of polyamide 6 (PA6)/organoclay nanocomposites is a serious impediment to wider applications of these nanocomposites. In this study, a solution is proposed based on the well‐established use of chain extenders. As in PA6, thermal degradation, in the absence of moisture, produces broken polymer chains with amide end groups, a chain extender with anhydride functionalities, known to be strongly reactive with amide groups, was used to reconnect the chains. Experiments conducted using a laboratory twin‐screw extruder were first checked, through transmission electron microscopy observations, to have produced good organoclay intercalation and exfoliation into PA6. Following from this, samples with the chain extender added were produced and characterized. The data obtained were conclusive in the effectiveness of the chain extender: for the chain extended nanocomposites, there is an enhancement in the value of the complex viscosity by 7 times and in the storage modulus by 88 times, while the tensile modulus increased by 57% compared with the neat PA6. The nonchain extended nanocomposite achieved in comparison an enhancement of 2 times the value of the complex viscosity and 19 times the storage modulus while the tensile modulus increased by 53% compared to the neat PA6. These data provide conclusive proof on the rationale that anhydride functionalities should be sought when developing chain extenders for PA6 nanocomposites.en_US
dc.description.sponsorshipGovernment of Turkeyen_US
dc.language.isoenen_US
dc.rights© 2019 Wiley. This is the peer-reviewed version of the following article: Tuna B and Benkreira H (2019) Chain extension of polyamide 6/organoclay nanocomposites. Polymer Engineering and Science, which has been published in final form at https://doi.org/10.1002/pen.25106. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.en_US
dc.subjectPA6-organoclayen_US
dc.subjectNanocompositesen_US
dc.subjectChain extendersen_US
dc.subjectThermal degradationen_US
dc.titleChain extension of polyamide 6/organoclay nanocompositesen_US
dc.status.refereedYesen_US
dc.date.Accepted2019-04-01
dc.date.application2019-04-19
dc.typeArticleen_US
dc.type.versionAccepted manuscripten_US
dc.identifier.doihttps://doi.org/10.1002/pen.25106


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