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Cellulose Nanocrystals Polymer

In 1959, Marchessault et al. [32] reported on the formation of liquid crystals in suspensions of cellulose nanocrystals prepared from cellulose by acid hydrolysis in sulfuric acid (see Fig. 6.17 for a microscopic image of cellulose nanorods). [Pg.221]

6 Phase Transitions in Suspensions of Rod-Like Colloids Plus Polymers [Pg.222]

When dextran was added to the biphasic region it leads to a signifieant broadening of the coexistenee region and the dextran preferentially partitions in the isotropic phase. These features are in agreement with the theory described in this chapter. [Pg.222]

Xu, S., Girouard, N., Schueneman, G., Shofner, M.L., Mtacdith, J.C. Mechanical and thermal properties of waterborne epoxy composites containing cellulose nanocrystals. Polym. 54, 6589-6598 (2013)... [Pg.11]

Dong, H., Strawhecker, KE., Snyder, J.F., Orlicki, J.A., Reiner, R.S., Rudie, A.W. Cellulose nanocrystals as a reinforcing material for electrospun poly(methyl methacrylate) fibers formation, properties and nanomechanical characterization. Carbohydr. Polym. 87, 2488-2495 (2012)... [Pg.15]

The cellulose based materials that are used as nano-reinforcements are cellulose nanocrystals (i.e. whiskers and nanospheres), nanofibrillated cellulose, regenerated cellulose nanoparticles and electrospun nanofibers. A wide range of polymer matrices have been used to form cellulose nanocomposites. Synthetic polymers such as polypropylene, poly(vinyl chloride) (PVC) [102], waterborne epoxy [103], waterborne polyurethane [104], polyurethane [105], poly-(styrene-co-butyl acrylate) [106], poly(oxyethylene) [107], polysiloxanes [108], polysulfonates [109], cellulose acetate butyrate [110,111], poly(caprolactone) [112], poly(viny 1 alcohol) [113] and poly (vinyl acetate) [114]. Different biopolymers such as starch-based... [Pg.34]

Electrospinning processes are used to prepare nanocomposite fiber mats. In order to prepare nanocomposite fiber mats, mixtures containing the polymer solution and cellulose whiskers solution are placed in the appropriated electrospinning setup. Peresin et al. [128] have produced nanocomposite mats of poly (vinyl alcohol) (PVA) reinforced with cellulose nanocrystals using this electrospinning technique. Smooth nonwoven mats with homogeneous nanofibers were obtained. Park et al. [129] have also incorporated cellulose whiskers into nanofibers of polyethylene oxide (PEO) by the electrospiiming process. [Pg.37]

The glass transition temperature (Tg) of cellulose reinforced composites is an important parameter which influences different properties of the resulting composite such as mechanical behavior, matrix chains dynamics and swelling behavior. Differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) are used to evaluate the Tg value of cellulose nanocomposites. In some cases, the addition of cellulose nanocrystals into polymer matrices does not seem to affect the... [Pg.40]

Wang, N., Ding, E., Cheng, R. Thermal degradation behaviors of spherical cellulose nanocrystals with sulfate groups. Polymer 48, 3486-3493 (2007)... [Pg.49]

Grunert, M., Winter, W.T. Nanocomposites of cellulose acetate butyrate reinforced with cellulose nanocrystals. J. Polym. Env. 10, 27-30 (2002)... [Pg.50]

Kan KH, Li J, Wijesekera K, Cranston ED (2013) Polymer-grafted cellulose nanocrystals as pH-responsive reversible flocculants. Biomacromolecules 14 3130-3139... [Pg.245]

Lin S, Huang J, Chang PR, Wei S, Xu Y, Zhang Q. Structure and mechanical properties of new biomass-based nanocomposite castor oil-based polyurethane reinforced with acetylated cellulose nanocrystal. Carbohydr Polym 2013 95 (1, 5) 91-99. [Pg.118]

Excluding the use of an aqueous polymer dispersion, or latex, an alternative way to process nonpolar polymer nanocomposites reinforced with cellulose nanocrystals consists of their dispersion in an adequate (with regard to matrix) organic medium. Coating with a surfactant or a surface chemical modification of the nanoparticles can be considered. The global objective is to reduce their surface energy in order to improve their dispersibUity/compatibility with nonpolar media. [Pg.191]

Beck-Candanedo S, Roman M, Gray DG (2005) Effect of reacnrai conditions on the properties and behavior of wood cellulose nanocrystal suspensions. Biomacrranolecules 6 1048-1054 Ben Ehnabrouk A, Wim T, Dufresne A et al (2009) Preparatirai of poly(styrene-co-hexylaCTylate)/ cellulose whiskers nanocomposites via miniemulsion polymerization. J Appl Polym Sd... [Pg.207]

II. Plastic behavior. J Polym Sci Part B Polym Phys 38 383-392 Chen G, Dufresne A, Huang J et al (2009) A novel thermoformable bionanocomposite based on cellulose nanocrystal-graft-poly(e-caprolactone). Macromol Mater Eng 294 59-67 Choi Y, Simonsen J (2006) Cellulose nanocrystal-filled carboxymethyl cellulose nanocomposites. J Nanosci Nanotechnol 6 633-639... [Pg.208]

Fukuzumi H, Saito T, Iwata T et al (2008) Transparent and high gas barrier films of cellulose nanofibers prepared by TEMPO-mediated oxidation. Biomacromolecules 10 162-165 Garcia de Rodriguez NL, Thielemans W, Dulfesne A (2006) Sisal cellulose whiskers reinforced polyvinyl acetate nanocomposites. Cellulose 13 261-270 Gousse C, Chanzy H, Excoffier G et al (2002) Stable suspensions of partially silylated cellulose whiskers dispersed in organic solvents. Polymer 43 2645-2651 Gray DG (2008) Transcrystallization of polypropylene at cellulose nanocrystal surfaces. Cellulose 15 297-301... [Pg.209]

Greiner A, Wendorff JH (2007) Electrospinning a fascinating method for the preparation of ultrathin fibers. Angew Chem Int Ed 46 5670-5703 Grunnert M, Winter WT (2002) Nanocomposites of cellulose acetate butyrate reinforced with cellulose nanocrystals. J Polym Environ 10 27-30 Habibi Y, Dufresne A (2008) Highly filled bionanocomposites from functionalized polysaccharide nanocrystals. Biomacromolecules 9 1974-1980... [Pg.209]

Ljungberg N, Cavaille J-Y, Heux L (2006) Nanocomposites of isotactic polypropylene reinforced with rod-like cellulose whiskers. Polymer 47 6285-6292 Lu Y, Weng L, Cao X (2005) Biocomposites of plasticized starch reinforced with cellulose crystallites from cottonseed linter. Macromol Biosci 5 1101-1107 Lu J, Wang T, Drzal LT (2008) Preparation and properties of microfibrillated cellulose polyvinyl alcohol composite materials. Compos Part A 39A 738-746 Magalhaes WLE, Cao X, Lucia LA (2009) Cellulose nanocrystals/cellulose core-in-shell nanocomposite assemblies. Langmuir. doi 10.1021Aa901928j Malainine ME, Mahrouz M, Dufresne A (2005) Thermoplastic nanocomposites based on cellulose microfibrils from Opuntiaficus-indica parenchyma cell. Compos Sci Technol 65 1520-1526 Marchessault RH, Sundararajan PR (1983) Cellulose. In Aspinall GO (ed) The polysaccharides. Academic, New York... [Pg.210]

See other pages where Cellulose Nanocrystals Polymer is mentioned: [Pg.221]    [Pg.554]    [Pg.86]    [Pg.221]    [Pg.554]    [Pg.86]    [Pg.560]    [Pg.400]    [Pg.57]    [Pg.86]    [Pg.91]    [Pg.99]    [Pg.211]    [Pg.160]    [Pg.217]    [Pg.231]    [Pg.237]    [Pg.381]    [Pg.118]    [Pg.260]    [Pg.190]    [Pg.191]    [Pg.193]    [Pg.197]    [Pg.207]    [Pg.528]    [Pg.579]    [Pg.587]    [Pg.587]    [Pg.2]   


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