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Criticality of colloids with distinct interaction patches: The limits of linear chains, hyperbranched polymers, and dimers

2009-08-26Journal article Restricted access
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dc.contributor.authorTavares, Jose
dc.contributor.authorTeixeira, Paulo
dc.contributor.authorGama, Margarida
dc.date.accessioned2014-06-19T15:36:49Z
dc.date.available2014-06-19T15:36:49Z
dc.date.issued2009-08-26
dc.description.abstractWe use a simple model of associating fluids which consists of spherical particles having a hard-core repulsion, complemented by three short-ranged attractive sites on the surface (sticky spots). Two of the spots are of type A and one is of type B; the bonding interactions between each pair of spots have strengths epsilon(AA), epsilon(BB), and epsilon(AB). The theory is applied over the whole range of bonding strengths and the results are interpreted in terms of the equilibrium cluster structures of the phases. In addition to our numerical results, we derive asymptotic expansions for the free energy in the limits for which there is no liquid-vapor critical point: linear chains (epsilon(AA)not equal 0, epsilon(AB)=epsilon(BB)=0), hyperbranched polymers (epsilon(AB)not equal 0, epsilon(AA)=epsilon(BB)=0), and dimers (epsilon(BB)not equal 0, epsilon(AA)=epsilon(AB)=0). These expansions also allow us to calculate the structure of the critical fluid by perturbing around the above limits, yielding three different types of condensation: of linear chains (AA clusters connected by a few AB or BB bonds); of hyperbranched polymers (AB clusters connected by AA bonds); or of dimers (BB clusters connected by AA bonds). Interestingly, there is no critical point when epsilon(AA) vanishes despite the fact that AA bonds alone cannot drive condensation.por
dc.description.sponsorshipPortuguese Foundation for Science and Technology (FCT) POCI/FIS/55592/2004 POCTI/ISFL/2/618por
dc.identifier.citationTAVARES, J. M.; TEIXEIRA, P. I. C.; GAMA, M. M. Telo da - Criticality of colloids with distinct interaction patches: The limits of linear chains, hyperbranched polymers, and dimers. Physical Review E. ISSN 1539-3755. Vol. 80, nr. 2 (2009), p. 021506-1/021506-12.por
dc.identifier.issn1539-3755
dc.identifier.other10.1103/PhysRevE.80.021506
dc.identifier.urihttp://hdl.handle.net/10400.21/3644
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmer Physical Socpor
dc.relation.ispartofseries;021506
dc.relation.publisherversionhttp://journals.aps.org/pre/abstract/10.1103/PhysRevE.80.021506por
dc.subjectAssociationpor
dc.subjectColloidspor
dc.subjectCondensationpor
dc.subjectCritical pointspor
dc.subjectFree energypor
dc.subjectLiquid structurepor
dc.subjectLiquid theorypor
dc.subjectShort-range orderpor
dc.titleCriticality of colloids with distinct interaction patches: The limits of linear chains, hyperbranched polymers, and dimerspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceUSApor
oaire.citation.endPage021506-12por
oaire.citation.issue2por
oaire.citation.startPage021506-1por
oaire.citation.titlePhysical Review Epor
oaire.citation.volume80por
person.familyNameTavares
person.familyNameTeixeira
person.familyNameTelo da Gama
person.givenNameJose
person.givenNamePaulo
person.givenNameMargarida Maria
person.identifierhttps://scholar.google.pt/citations?user=OrsjRkYAAAAJ&hl=pt-PT
person.identifier.ciencia-id371D-51C6-975C
person.identifier.ciencia-idB31A-0CBD-8AC4
person.identifier.ciencia-idB811-A73C-181F
person.identifier.orcid0000-0002-1509-9707
person.identifier.orcid0000-0003-2315-2261
person.identifier.ridA-2891-2009
person.identifier.ridA-2682-2009
person.identifier.scopus-author-id35621140500
person.identifier.scopus-author-id7005895098
person.identifier.scopus-author-id0000-0001-8849-9990
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication21fb8ec6-5b23-4df8-ba97-32256495d24d
relation.isAuthorOfPublication35a012c6-2e8b-402f-9b82-065843fce9aa
relation.isAuthorOfPublication4fde2efd-f48f-4419-b383-74945fb2db28
relation.isAuthorOfPublication.latestForDiscovery35a012c6-2e8b-402f-9b82-065843fce9aa

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