Inverse gas chromatography investigation of the surface properties of cellulose

Papirer, E.; Brendle, Eric; Balard, H.; Vergelati, Caroll

doi:10.1163/156856100742627

Cited by 69 publications

(53 citation statements)

References 12 publications

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“…The differences in the s d values between the TEMPO-oxidised nanocelluloses and the enzymatic nanocellulose can partly be due to the different crystallinity of the nanocelullose samples. It has been proposed previously that more crystalline celluloses show a higher surface energy [26,27]. In particular, bacterial cellulose nanocrystals samples, possessing a high crystallinity index, showed s d values higher than 60 mJ m -2 [17,19].…”

Section: Resultsmentioning

confidence: 86%

Surface properties of distinct nanofibrillated celluloses assessed by inverse gas chromatography

Gamelas

Pedrosa

Lourenço

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Surface properties of distinct nanofibrillated celluloses assessed by inverse gas chromatography, Colloids and Surfaces A: Physicochemical and Engineering Aspects (2015), http://dx.doi.org/10.1016/j.colsurfa. 2014.12.058 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Higher specific interactions with polar probes were found for enzymatic nanocellulose. The higher values of s d and specific interactions observed for the enzymatic nanocellulose could partly be due to the higher crystallinity of this sample. On the other hand, the increase of the acidity/basicity ratio (as well as of the s d value) for the 15-passes vs. 5-passes TEMPO nanofibres was attributed to a higher exposition of the hydroxyl groups of cellulose at the surface of the former material.

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Section: Resultsmentioning

confidence: 86%

Surface properties of distinct nanofibrillated celluloses assessed by inverse gas chromatography

Gamelas

Pedrosa

Lourenço

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…The dispersive component of the surface energy and the acid-base properties were assessed by IGC (Dorris and Gray 1980;Luner 1989, 1993;Felix and Gatenholm 1993a, b;Felix et al 1993Felix et al , 1994Glasser 1994, 1996;Jacob and Berg 1994;Belgacem et al 1995Belgacem et al , 1996Tshabalala 1997;Botaro and Gandini 1998;Trejo-O 0 Reilly et al 1998;Papirer et al 2000;Borges et al 2001;Peng and Zou 2007;Steele et al 2008; Riddle and Fowkes (1990), Kamdem et al (1993), Santos and Guthrie (2005) Cellulose (2013) (Belgacem et al 1995(Belgacem et al , 1996, and cellulose powder presented a c s d of 48 mJ m -2 (Tshabalala 1997). Recently, the dispersive component of the surface energy of microcrystalline celluloses was assessed by IGC at 0 and 44 % relative humidity (RH) (Steele et al 2008).…”

Section: Cellulose Analyses By Igcmentioning

confidence: 99%

“…It has been proposed that, besides the chemical composition of the cellulose surface, other factors such as crystallinity, diffusion of probes into the bulk volume and surface morphology also play an important role in the interaction between the probes and the cellulose surfaces and thus influence the IGC data (Chtourou et al 1995;Papirer et al 2000). Concerning crystallinity, it has been reported that microcrystalline cellulose shows a significantly higher c s d value at 50°C (40.9 mJ m -2 ) than that calculated by an empirical method for ''amorphous'' cellulose (28 mJ m -2 ) (Belgacem et al 1996;Papirer et al 2000). Overall, for the analysis of the effects of chemical and physical treatments on the cellulose surface (discussed below) care must be taken when considering a single value for the dispersive component of the surface energy of cellulose.…”

Section: Cellulose Analyses By Igcmentioning

confidence: 99%

The surface properties of cellulose and lignocellulosic materials assessed by inverse gas chromatography: a review

Gamelas

2013

Cellulose

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The physicochemical surface properties of cellulose and lignocellulosic materials are of major importance in the context of the production of composites, in papermaking, and textile area. These properties can be evaluated by using inverse gas chromatography (IGC), a particularly suitable technique for the characterization of the surface properties of fibrous materials and powders. At infinite dilution conditions of appropriate gas probes, IGC may provide important parameters including the dispersive component of the surface energy of the material under analysis, thermodynamic data on the adsorption of specific probes, and Lewis acid-base interaction parameters between the matrix and the filler of composite materials. This paper critically reviews the most relevant results available in the literature concerning the characterization of cellulose and lignocellulosic materials using IGC. Emphasis will be put into the cellulose and nanocellulose surface properties, changes in the surface properties of cellulose and lignocellulosic materials after chemical and physical modifications, and in the compatibility of cellulose-based materials with polymeric matrices. The surface properties of non-woody fibers will also be considered. Before discussing the results available in the literature, the theoretical background and the main approaches used for the calculation of parameters accessed by IGC will be given. It is expected that this review can contribute to a better knowledge of the physicochemical surface properties of cellulosics.

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“…This surprising observation was explained with the changes in crystal structure occurred during grinding. Grinding decreases the crystalline perfection and crystallite size, and on the less perfect crystalline surfaces the adsorption of the n-alkane probes is limited, since on a molecular scale rough surface, the retention time is shorter due to the hindered access (Papirer, Brendle, Balard, & Vergelati, 2000;Belgacem, Blayo, & Gardini, 1996). On the flat cellulose surface of a highly crystalline substrate such as flax fiber, the n-alkane probes can adopt a particular conformation, which leads to an optimal interaction between the probe and the surface, and consequently results in a longer retention time and a higher surface energy.…”

Section: Surface Energeticsmentioning

confidence: 99%

Effect of particle size on the surface properties and morphology of ground flax

Csiszár

Fekete

Tóth

et al. 2013

Carbohydrate Polymers

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Flax fibers were ground with a ball-mill and four fractions with different size ranges were collected by sieving. These were tested for water sorption, degree of polymerization (DP), copper number, hydroxyl number and analyzed by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and inverse gas chromatography (IGC). Significant differences were found between the properties of the flax fiber and those of the ground versions, including fragmentation of fibers, increase of water sorption, copper number, hydroxyl number and surface O/C ratio, and decrease of DP, crystallite size and dispersive component of surface energy ( s d ). Some parameters depended on the particle size: O/C ratio and hydroxyl number had local maxima at 315-630 μm, while  s d increased steadily with the decrease of particle size. These relationships were explained by fiber disintegration, destruction of waxy surface layer, exposure of cellulosic components, increase of surface area and crystalline imperfections.

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Inverse gas chromatography investigation of the surface properties of cellulose

Cited by 69 publications

References 12 publications

Surface properties of distinct nanofibrillated celluloses assessed by inverse gas chromatography

Surface properties of distinct nanofibrillated celluloses assessed by inverse gas chromatography

The surface properties of cellulose and lignocellulosic materials assessed by inverse gas chromatography: a review

Effect of particle size on the surface properties and morphology of ground flax

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