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dc.contributor.authorMorales Gámez, Laura Teresa
dc.contributor.authorSoto, David X.
dc.contributor.authorFranco García, María Lourdes
dc.contributor.authorPuiggalí Bellalta, Jordi
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2011-01-10T11:42:02Z
dc.date.available2011-01-10T11:42:02Z
dc.date.created2010-11-12
dc.date.issued2010-11-12
dc.identifier.citationMorales, L. [et al.]. Brill transition and melt crystallization of nylon 56 an odd-even polyamide with two hydrogen-bonding directions. "Polymer", 12 Novembre 2010, vol. 51, núm. 24, p. 5788-5798.
dc.identifier.issn0032-3861
dc.identifier.urihttp://hdl.handle.net/2117/10932
dc.description.abstractBrill transition and crystallization behaviour of nylon 56, a representative polymer of odd–even polyamides, were investigated by simultaneous WAXD and SAXS synchrotron radiation. Nylon 56 crystallized from solution into a peculiar structure where hydrogen bonds were established along the two directions. Nylon 56 experimented on heating a Brill transition that lead to a pseudohexagonal packing and lately to a monoclinic unit cell where neighbouring molecular segments were shifted along the chain axis direction. In disagreement with conventional polyamides, the Brill transition of nylon 56 was not reversible since on cooling the pseudohexagonal arrangement was mainly attained. Optical microscopy studies performed under both isothermal and non-isothermal conditions demonstrated that nylon 56 spherulites had different optical properties than even–even nylons having conventional sheet structures. The birefringence sign changed in the sequence positive–negative–positive when crystallization temperature was decreased.
dc.format.extent11 p.
dc.language.isoeng
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria química
dc.subject.lcshPolyamides
dc.subject.lcshCrystallization
dc.titleBrill transition and melt crystallization of nylon 56 an odd-even polyamide with two hydrogen-bonding directions
dc.typeArticle
dc.subject.lemacPoliamides
dc.subject.lemacCristal·lització
dc.contributor.groupUniversitat Politècnica de Catalunya. PSEP - Polimers Sintètics: Estructura i Propietats. Polimers Biodegradables.
dc.identifier.doi10.1016/j.polymer.2010.09.074
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://linkinghub.elsevier.com/retrieve/pii/S003238611000858X
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac4462623
dc.description.versionPostprint (published version)
local.citation.authorMorales, L.; Soto, D.; Franco, M.; Puiggali, J.
local.citation.publicationNamePolymer
local.citation.volume51
local.citation.number24
local.citation.startingPage5788
local.citation.endingPage5798


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Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain