CELLULOSE NANOCRYSTALS FROM BACTERIAL CELLULOSE

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorCtr Univ Araraquara
dc.contributorUniversidade Federal de Uberlândia (UFU)
dc.date.accessioned2018-11-27T06:00:13Z
dc.date.available2018-11-27T06:00:13Z
dc.date.created2018-11-27T06:00:13Z
dc.date.issued2015-11-01
dc.identifierQuimica Nova. Sao Paulo: Soc Brasileira Quimica, v. 38, n. 9, p. 1140-1147, 2015.
dc.identifier0100-4042
dc.identifierhttp://hdl.handle.net/11449/165005
dc.identifier10.5935/0100-4042.20150131
dc.identifierS0100-40422015000901140
dc.identifierWOS:000366634200002
dc.identifierS0100-40422015000901140.pdf
dc.identifier528258491277437
dc.identifier0000-0002-5049-8797
dc.description.abstractBacterial cellulose produced from Gluconacetobacter xilinus was used to produce cellulose nanocrystals by sulfuric acid hydrolysis. Hydrolysis was performed with 64% sulfuric acid at 50 degrees C with the hydrolysis time ranging between 5 and 90 min. The production of nanocrystals was observed to have size distributions that were dependent on hydrolysis times up to 10 min, after which time the suspensions showed distributions closer in size. Results from thermal analysis and X-ray diffraction showed that the amorphous cellulose was removed, leaving only the crystalline portion. Self-supported films were formed from the suspension of nanocrystals and had iridescence characteristics. The films were characterized by microscopy measures and specular reflectance.
dc.languagepor
dc.publisherSoc Brasileira Quimica
dc.relationQuimica Nova
dc.relation0,255
dc.rightsAcesso aberto
dc.sourceWeb of Science
dc.subjectbacterial cellulose
dc.subjectnanocrystals
dc.subjecthydrolysis time
dc.subjectiridescent films
dc.titleCELLULOSE NANOCRYSTALS FROM BACTERIAL CELLULOSE
dc.typeArtículos de revistas


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