02124naa a2200397 a 450000100080000000500110000800800410001902400530006010000210011324501440013426000090027852009750028765000140126265000250127665000150130165000190131665000090133565000210134465000220136565000130138765000140140065000100141465300250142465300250144965300180147465300170149265300190150965300180152865300150154670000240156170000170158570000270160270000250162970000190165477300530167320481242016-07-01       2016    bl uuuu     u00u1 u    #d7 ahttp://dx.doi.org/10.1016/j.tca.2016.06.0102DOI1 aLENGOWSKI, E. C.  aNew and improved method of investigation using thermal tools for characterization of cellulose from eucalyptus pulp.h[electronic resource]  c2016  aDespite cellulose being the most abundant biopolymer on earth and an important commodity, thereis a lack of deeper knowledge about its structure as well as faster and more efficient characterizationtechniques. This paper presents preparation of nanocellulose from bleached cellulose pulp of Eucalyptusby chemical and mechanical pre-treatments, while the cellulose was given treatment to obtain a greatrange of crystallinity index. The nanocellulose is characterized by X-ray diffraction to evaluate Segal?sindex while chemometric tools by TGA and DTA were used to predict Segal?s index. DTA curves, alongwith multivariate statistical model, presented better result than TGA. The coefficient of variation andstandard error of prediction for the proposed models using external validation samples were in therange of 0.91?0.96 and 4.18?8.71, respectively. These successful mathematical models are discussed bycorrelating them with the observed characteristics of cellulose.  aCellulose  aCellulosic materials  aEucalyptus  aNanotechnology  aPulp  aThermal analysis  aX-ray diffraction  aCelulose  aEucalipto  aPolpa  aChemometric analysis  aDifração de raio X  aNanocellulose  aNanocelulose  aNanotecnologia  aSegal's index  aValidation1 aMAGALHAES, W. L. E.1 aNISGOSKI, S.1 aBOLZON DE MUNIZ, G. I.1 aSATYANARAYANA, K. G.1 aLAZZAROTTO, M.  tThermochimica Actagv. 638, p. 44-51, Aug. 2016.