Chemical modification of lignocellulosic materials by irradiation with Nd-YAG pulsed laser.

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dc.contributor.authorBotaro, Vagner Roberto
dc.contributor.authorSantos, Cláudio Gouvêa dos
dc.contributor.authorArantes Júnior, Gilberto
dc.contributor.authorCosta, Adilson Rodrigues da
dc.date.accessioned2012-06-18T18:43:37Z
dc.date.available2012-06-18T18:43:37Z
dc.date.issued2001
dc.description.abstractMost reports about modification of lignocellulosics are mainly based on chemical modifications such as specific reactions on hydroxyl groups of cellulose. In this work, we describe the irradiation of Whatman 5 filter paper, microcrystalline cellulose and organosolv lignin with Nd-YAG laser pulses at 1064 nm. The chemical and structural properties of the degraded products were investigated by using FTIR and UV spectroscopies, conductimetrical and SEC analyses. While irradiation affects molar mass and polydispersity of lignin, no detrimental effects caused by Nd-YAG laser treatments were observed for cellulose samples. These results demonstrate that Nd-YAG laser can be used as a practical and selective degradation tool, opening a new field for obtaining surface modified natural fibers.pt_BR
dc.identifier.citationBOTARO, V. R.; SANTOS, C. G. dos; ARANTES JÚNIOR, G. Chemical modification of lignocellulosic materials by irradiation with Nd-YAG pulsed laser. Applied Surface Science, v. 183, n.1-2, p.120–125, nov. 2001. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0169433201005712>. Acesso em: 18 jun. 2012.pt_BR
dc.identifier.issn01694332
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/870
dc.language.isoen_USpt_BR
dc.publisherApplied Surface Sciencept_BR
dc.rights.licenseO Periódico Applied Surface Science concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3310910802468
dc.subjectLaserpt_BR
dc.subjectCompositept_BR
dc.subjectModificationpt_BR
dc.subjectSurfacespt_BR
dc.titleChemical modification of lignocellulosic materials by irradiation with Nd-YAG pulsed laser.pt_BR
dc.typeArtigo publicado em periodicopt_BR

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