Evaluation of short cycles of ultrasound application in nanoemulsions to obtain nanocapsules.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorCarneiro, Simone Pinto-
Autor(es): dc.creatorCruz, Ricardo Machado-
Autor(es): dc.creatorSantos, Orlando David Henrique dos-
Data de aceite: dc.date.accessioned2019-11-06T13:36:06Z-
Data de disponibilização: dc.date.available2019-11-06T13:36:06Z-
Data de envio: dc.date.issued2016-01-06-
Data de envio: dc.date.issued2016-01-06-
Data de envio: dc.date.issued2015-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/5997-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/559119-
Descrição: dc.descriptionUltrasound is widely used in several chemical reactions and other process, including production of nanocapsules by in situ polymerization. In this work, the main objective was to evaluate the impacts and viability of successive ultrasound application in nanoemulsions to obtain nanocapsules. Initiator potassium persulfate (KPS) concentration, number of ultrasound cycles and reaction time influences on polymerization efficiency and droplet size were evaluated. This work revealed the successful in situ production of nanocapsules using successive shorts cycles of ultrasound. Number of cycles was the only parameter that not exerted significant influence in polymerization yield. Particle size decay was observed in all nanoemulsions after the first ultrasound application, the same was not observed in further cycles. Gravimetric assessment showed remarkable increase of monomer conversion, indicating that once started polymerization continued at least until 28 days after ultrasound application. Concluding, ultrasound short cycles can be used with no harm to formulation, if carefully performed and, furthermore is a potential cost-effective route for polymerization reactions-
Idioma: dc.languageen-
Direitos: dc.rightsO Periódico Ultrasonics Sonochemistry concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3732420731744-
Palavras-chave: dc.subjectUltrasound polymerization-
Palavras-chave: dc.subjectIn situ polymerization-
Palavras-chave: dc.subjectNanocapsules-
Título: dc.titleEvaluation of short cycles of ultrasound application in nanoemulsions to obtain nanocapsules.-
Aparece nas coleções:Repositório Institucional - UFOP

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