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Intra- and extra-gallery reactions in tri-functional epoxy polymer layered silicate nanocomposites
dc.contributor.author | Hutchinson, John M. |
dc.contributor.author | Shiravand, Fatemeh |
dc.contributor.author | Calventus Solé, Yolanda |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics |
dc.date.accessioned | 2013-06-06T13:37:16Z |
dc.date.created | 2012-09-05 |
dc.date.issued | 2012-09-05 |
dc.identifier.citation | Hutchinson, J.M.; Shiravand, F.; Calventus, Y. Intra- and extra-gallery reactions in tri-functional epoxy polymer layered silicate nanocomposites. "Journal of applied polymer science", 05 Setembre 2012, vol. 128, núm. 5, p. 2961-2970. |
dc.identifier.issn | 0021-8995 |
dc.identifier.uri | http://hdl.handle.net/2117/19525 |
dc.description.abstract | Achieving a high degree of exfoliation in epoxy-based polymer layered silicate (PLS) nanocomposites is crucial to their successful industrial application, but has hitherto proved elusive. In this work, a system is presented which shows significant promise in this respect. The isothermal cure of PLS nanocomposites based upon a tri-functional epoxy resin (TGAP) has been studied by DSC, and displays two exothermic peaks. The first peak, very rapid, relates to a homopolymerization reaction within the intra-gallery regions, while the second peak reflects the bulk crosslinking reaction. The occurrence of the intra-gallery reaction before the bulk reaction enhances the degree of exfoliation in the cured nanocomposite. Furthermore, pre-conditioning the resin/clay mixture before adding the curing agent and effecting the isothermal cure also allows a greater extent of intra-gallery reaction to occur before the extra-gallery epoxy-amine reaction. Consequently, this system results in a high degree of exfoliation, as revealed by transmission electron microscopy. |
dc.format.extent | 10 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria dels materials |
dc.subject.lcsh | Nanocomposites (Materials) |
dc.subject.lcsh | Crosslinking (Polymerization) |
dc.subject.lcsh | Thermosetting composites |
dc.subject.other | composites |
dc.subject.other | crosslinking |
dc.subject.other | differential scanning calorimetry (DSC) |
dc.subject.other | microscopy |
dc.subject.other | thermosets |
dc.title | Intra- and extra-gallery reactions in tri-functional epoxy polymer layered silicate nanocomposites |
dc.type | Article |
dc.subject.lemac | Nanocompòsits (Materials) |
dc.contributor.group | Universitat Politècnica de Catalunya. TERFIQ - Grup de Termodinàmica i Fisico-Química |
dc.identifier.doi | 10.1002/app.38452 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://onlinelibrary.wiley.com/doi/10.1002/app.38452/abstract |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 12466950 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Hutchinson, J.M.; Shiravand, F.; Calventus, Y. |
local.citation.publicationName | Journal of applied polymer science |
local.citation.volume | 128 |
local.citation.number | 5 |
local.citation.startingPage | 2961 |
local.citation.endingPage | 2970 |
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