Latex surface and bulk coagulation induced by solvent vapors

dc.creatorBraga, M
dc.creatorda Silva, MDVM
dc.creatorCardoso, AH
dc.creatorGalembeck, F
dc.date2000
dc.dateAUG 1
dc.date2014-12-02T16:30:16Z
dc.date2015-11-26T17:39:30Z
dc.date2014-12-02T16:30:16Z
dc.date2015-11-26T17:39:30Z
dc.date.accessioned2018-03-29T00:21:05Z
dc.date.available2018-03-29T00:21:05Z
dc.identifierJournal Of Colloid And Interface Science. Academic Press Inc, v. 228, n. 1, n. 171, n. 177, 2000.
dc.identifier0021-9797
dc.identifierWOS:000088522000023
dc.identifier10.1006/jcis.2000.6920
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/61199
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/61199
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/61199
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1286468
dc.descriptionLatex exposure to solvent vapors leads to highly specific changes in latex stability as well as on the morphologies of the particle association products, depending on the latex and solvent used. Examples of solvent vapor-induced aggregation are given: surface films are obtained on two PS latexes; in one case, the film surface is mirror-reflective and very hat, as evidenced by AFM. Another PS latex coagulates under exposure to acetone vapors, and the morphologies of the coagula are highly sensitive to the exposure conditions. This latex yields a highly porous foam-like structure, in which particles are strongly coalesced but form percolating patches around the pores. The same latex but under other conditions produces a coagulum of large numbers of aggregated particles with a raspberry-like morphology. Density centrifugation experiments show that the effect of solvents on different latex fractions is not uniform, and some fractions show larger density changes than others, thus evidencing a variability in their swelling ability. (C) 2000 Academic Press.
dc.description228
dc.description1
dc.description171
dc.description177
dc.languageen
dc.publisherAcademic Press Inc
dc.publisherSan Diego
dc.publisherEUA
dc.relationJournal Of Colloid And Interface Science
dc.relationJ. Colloid Interface Sci.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectlatex film formation
dc.subjectPS latex stability
dc.subjectsolvent effects on latex stability
dc.subjectsolvent-induced coagulation
dc.subjectParticles
dc.subjectCentrifugation
dc.subjectSpectroscopy
dc.subjectFlocculation
dc.subjectStability
dc.subjectLattices
dc.subjectStyrene
dc.subjectLayer
dc.titleLatex surface and bulk coagulation induced by solvent vapors
dc.typeArtículos de revistas


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