Novel dynamic viscoelastic measurements of polyurethane copolymer melts and their implication to tack results

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dc.contributor.authorFlorez, Sonia
dc.contributor.authorMuñoz, María Eugenia
dc.contributor.authorSantamarín, Anton
dc.contributor.institutionPOLIMEROS
dc.date.accessioned2024-07-24T12:14:02Z
dc.date.available2024-07-24T12:14:02Z
dc.date.issued2006-10-20
dc.description.abstractA series of polyurethane multiblock copolymers with different proportions of hard segments (urethane) to soft segments (polyadipate of hexane-1,6-diol), are investigated. Dynamic viscoelastic functions of homogeneous melts in the terminal zone are determined. For the first time, entanglement modulus values of such copolymers are reported, which allows estimation of the packing length. These parameters do not vary with changing the hard-to-soft segment ratio, a result that is explained by u compensating effect of the chain architecture. For samples of similar molecular weight, the relaxation time of the terminal zone increases as the hard-to-soft segment ratio augments. The adhesives obtained from PUR solutions show a correlation between the elastic modulus and the debonding stress-strain curves in tack experiments.en
dc.description.statusPeer reviewed
dc.format.extent7
dc.identifier.citationFlorez , S , Muñoz , M E & Santamarín , A 2006 , ' Novel dynamic viscoelastic measurements of polyurethane copolymer melts and their implication to tack results ' , Macromolecular Materials and Engineering , vol. 291 , no. 10 , pp. 1194-1200 . https://doi.org/10.1002/mame.200600183
dc.identifier.doi10.1002/mame.200600183
dc.identifier.issn1438-7492
dc.identifier.urihttps://hdl.handle.net/11556/4434
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=33750709302&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofMacromolecular Materials and Engineering
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsAdhesives
dc.subject.keywordsHard segments
dc.subject.keywordsRheology
dc.subject.keywordsTack
dc.subject.keywordsViscoelastic properties
dc.subject.keywordsGeneral Chemical Engineering
dc.subject.keywordsOrganic Chemistry
dc.subject.keywordsPolymers and Plastics
dc.subject.keywordsMaterials Chemistry
dc.titleNovel dynamic viscoelastic measurements of polyurethane copolymer melts and their implication to tack resultsen
dc.typejournal article
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