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Type: Artigo de periódico
Title: Macrocrystal Swelling: Afm In Situ Observation Of Particle And Film Deformation And Motion.
Author: Galembeck, André
Costa, Carlos Alberto Rodrigues
Medeiros da Silva Md, Maria do Carmo Vasconcelos
Galembeck, Fernando
Abstract: The surface of a poly(styrene-hydroxyethylmethacrylate), macrocrystalline film was observed by atomic force microscopy in the contact mode, before and during film immersion in water. The swelling effect on film morphology is strongly dependent on the quality of the macrocrystalline surface: film integrity is preserved or concerted many-particle displacement is observed in well-organized areas with few defects, but extensive particle displacement is observed in highly defective areas. The lateral particle dimensions increase by ca. 10-15% only and particle aspect ratio is unaltered in the highly crystalline areas. However, film roughness is greatly decreased, and flat mirror-like surface domains are obtained due to the concerted effects of particle swelling and latex-water interfacial tension. Copyright 2001 Academic Press.
Citation: Journal Of Colloid And Interface Science. v. 234, n. 2, p. 393-399, 2001-Feb.
Rights: fechado
Identifier DOI: 10.1006/jcis.2000.7291
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

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