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NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10.1007/s10973-005-0846-8Journal of Thermal Analysis and Calorimetry, 82, 1, pp. 89-95, 2005-09-01 Preparation and properties of calcium silicate hydrate-poly(vinyl alcohol) nanocomposite materials Mojumdar, S. C.; Raki, L.http://irc.nrc-cnrc.gc.caPre pa rat ion a nd prope r t ie s of c a lc ium silic at e hydrat e -poly(vinyl a lc ohol) na noc om posit e m at e ria ls
NRCC-48686Mojumdar, S.C.; Raki, L.A version of this document is published in / Une version de ce document se trouve dans : Journal of Thermal Analysis and Calorimetry, v. 82, no. 1, Sept. 2005, pp. 89-95 doi: 10.1007/s10973-005-6837-y
IntroductionNanocomposites are a new class of composites, that are particle-filled polymers for which at least one dimension of the dispersed particles is in the nanometer range. Three types of nanocomposites, depending on how many dimensions of the dispersed particles are in the nanometer range can be distinguished [1]. Particles with three dimensions in the order of nanometers are typically isodimensional, such as spherical silica nanoparticles obtained by in situ sol-gel methods [2,3] or by polymerization promoted directly from their surface [3,4]. They also include semiconductor nanoclusters [5] and others [3]. Nanotubes or whiskers (with dimensions in the nanometer scale and the third forming a larger elongated structure), for example, carbon nanotubes [6] or cellulose whiskers [7,8], are extensively studied as reinforcing phases yielding materials with exceptional properties. The third type of nanocomposites is characterized by only one dimension in the nanometer range. In this case the material is present in the form of sheets of one to a few nanometers thick and hundreds to thousands nanometers long. This family of composites is referred to as polymer-layered crystal nanocomposites.Depending on the nature of the components used (layered structure, organic ions/polymer matrix) and the method of preparation, three main types of composites may be obtained when a layered structure is associated with a polymer [1].If the polymer is unable to intercalate between the layered sheets, a phase-separated composite is obtained, whose properties stay in the same range as traditional microcomposites. Beyond this classical family of composites, two types of nanocomposites can be dis...
