Nanoparticles: Uses and Relationships to Molecular Cluster Compounds

Herron, Norman; Thorn, David L.

doi:10.1002/(sici)1521-4095(199810)10:15<1173::aid-adma1173>3.0.co;2-6

“…Particles with three dimensions in the order of nanometers are typically isodimensional, such as spherical silica nanoparticles obtained by in situ sol-gel methods [8,9] or by polymerization promoted directly from their surface [10]. They also include semiconductor nanoclusters [11] and others [9]. Nanotubes or whiskers (with dimensions in the nanometer scale and the third forming a larger elongated structure), for example, carbon nanotubes [12] or cellulose whiskers [13,14] are extensively studied as reinforcing phases yielding materials with exceptional properties.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, thermal and structural characterization of nanocomposites for potential applications in construction

Mojumdar

¹

,

Raki

²

2006

J Therm Anal Calorim

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/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en 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/s10973-006-7720-1 Analysis and Calorimetry, 86, 3, pp. 651-657, 2006-12-01 Synthesis, thermal and structural characterization of nanocomposites for potential applications in construction Mojumdar, S. C.; Raki, L. Journal of Thermalhttp://irc.nrc-cnrc.gc.ca Synthesis, thermal and structural characterization of nanocomposites for potential applications in construction NRCC-45170Mojumdar, 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. 86, no. 3, Dec. 2006, pp. 651-657 Doi: 10.1007/s10973-006-7720-1 The material in this document is covered by the provisions of the Copyright Act, by Canadian laws, policies, regulations and international agreements. Such provisions serve to identify the information source and, in specific instances, to prohibit reproduction of materials without written permission.

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“…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.…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of calcium silicate hydrate-poly(vinyl alcohol) nanocomposite materials

Mojumdar

¹

,

Raki

²

2005

J Therm Anal Calorim

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/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en 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...

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“…The potential of combining the advantages of organic polymers with inorganic clusters has been demonstrated in applications as light emitting diodes [1][2][3][4][5], photovoltaics [6]and non-linear optics [7,8]. For most of the above applications, nanoclusters or quantum dots of II-VI semiconductors like CdSe, CdS and ZnS have been embedded in a polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

Molecular packing in CdS containing conducting polymer composite LB multilayers

Vidya¹,

Kumar²,

Narang³

et al. 2002

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Langmuir-Blodgett (LB) technique has been used to deposit composite multilayers of poly (3-octylthiophene)-cadmium arachidate (POT-CdA) and polyaniline-cadmium arachidate (PANI-CdA). These were used as precursors to develop semiconducting CdS nanoclusters within the conducting polymer based multilayers. The presence of CdS in the multilayers was determined by Fourier transform infrared spectroscopy (FTIR), UV -Vis and Raman spectroscopy. The structural changes occurring as a consequence of CdS formation have been characterized using X-ray reflection and grazing incidence X-ray diffraction (GIXD) techniques. As-deposited POT-CdA multilayers exhibit good vertical as well as in-plane structure similar to that of CdA. In contrast, PANI-CdA multilayers have poor structural order. The in-plane molecular packing in CdA and PANI-CdA multilayers after H 2 S exposure has mixed domains of rectangular (herringbone) and hexagonal arrangements. In the case of POT-CdA multilayers, however, the original rectangular packing is retained.

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Nanoparticles: Uses and Relationships to Molecular Cluster Compounds

Cited by 139 publications

References 31 publications

Synthesis, thermal and structural characterization of nanocomposites for potential applications in construction

Synthesis, thermal and structural characterization of nanocomposites for potential applications in construction

Preparation and properties of calcium silicate hydrate-poly(vinyl alcohol) nanocomposite materials

Molecular packing in CdS containing conducting polymer composite LB multilayers

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