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dc.contributor.author
Tomba, Juan Pablo  
dc.date.available
2018-01-15T15:04:33Z  
dc.date.issued
2016-04-25  
dc.identifier.citation
Tomba, Juan Pablo; Comment on "Observation of mutual diffusion of macromolecules in PS/PMMA binary films by confocal Raman microscopy"; Royal Society of Chemistry; Soft Matter; 20; 12; 25-4-2016; 4510-4513  
dc.identifier.issn
1744-683X  
dc.identifier.uri
http://hdl.handle.net/11336/33232  
dc.description.abstract
A paper by Hu et al. (Soft Matter, 2012, 8, 4780) reports on the use of confocal Raman microscopy to resolve mutual diffusion between polystyrene (PS) and poly(methyl methacrylate) (PMMA). In-depth optical sectioning is employed to measure the diffusive broadening of the originally planar PS–PMMA interface, from which tracer and mutual diffusion coefficients and values for the PS–PMMA thermodynamic interaction parameter are extracted. Here, a reinterpretation of Hu’s data that leads to a completely different scenario is presented, as apparent diffusive broadening can be mostly attributed to optical distortions inherent to the probe methodology. It also explains the lack of consistency of kinetic and thermodynamic parameters obtained by the authors from their diffusion analysis in comparison with earlier published data on this system. Overall, it highlights the importance of carrying out appropriate data analysis when confocal Raman microscopy is applied in dry depth-profiling investigations.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Royal Society of Chemistry  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
-  
dc.subject.classification
Recubrimientos y Películas  
dc.subject.classification
Ingeniería de los Materiales  
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS  
dc.title
Comment on "Observation of mutual diffusion of macromolecules in PS/PMMA binary films by confocal Raman microscopy"  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-01-12T19:24:43Z  
dc.journal.volume
20  
dc.journal.number
12  
dc.journal.pagination
4510-4513  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
Cambridge  
dc.description.fil
Fil: Tomba, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina  
dc.journal.title
Soft Matter  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/content/articlelanding/2016/sm/c5sm02735g#!divAbstract  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1039/c5sm02735g