Polymer-layered silicate nanocomposites: preparation, properties and uses of a new class of materials

This review aims at reporting on very recent developments in syntheses, properties and (future) applications of polymer-layered silicate nanocomposites. This new type of materials, based on smectite clays usually rendered hydrophobic through ionic exchange of the sodium interlayer cation with an oni...

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Vydáno v:	Materials science & engineering. R, Reports : a review journal Ročník 28; číslo 1; s. 1 - 63
Hlavní autoři:	Alexandre, Michael, Dubois, Philippe
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Elsevier B.V 15.06.2000 Elsevier
Témata:	Chemistry Chimie clay Exfoliation–adsorption Intercalative polymerization Layered silicate nanocomposites Mechanical properties Melt intercalation nanocomposite nanostructured materials Physical, chemical, mathematical & earth Sciences Physique, chimie, mathématiques & sciences de la terre Thermal stability Melt intercalation PANI, poly(aniline) Exfoliation–adsorption Thermal stability PLA, poly(lactide) PP, poly(propylene) PXDMS, poly( p-xylenylene dimethylsulfonium bromide) FTIR, Fourier transform infrared spectroscopy PCL, poly(ε-caprolactone) DSC, differential scanning calorimetry PVPyr, poly(vinylpyrrolidone) PAA, poly(acrylic acid) Intercalative polymerization PVCH, poly(vinylcyclohexane) NBR, nitrile rubber DMA, dynamic mechanical analysis PP-MA, maleic anhydride modified poly(propylene) NMA, nadic methyl anhydride PDMS, poly(dimethylsiloxane) TEOS, tetraethylorthosilicate MMT, montmorillonite PP-OH, hydroxyl modified poly(propylene) CEC, cation exchange capacity BDMA, benzyldimethylamine AIBN, N, N′-azobis(isobutyronitrile) EDX, energy dispersive X-ray THF, tetrahydrofuran PAN, poly(acrylonitrile) ALA, aminolauric acid PEO, poly(ethylene oxide) PS3Br, poly(3-bromostyrene) DGEBA, diglycidyl ether of bisphenol A HPMC, hydroxypropylmethylcellulose BTFA, boron trifluoride monomethylamine XRD, X-ray diffraction MAO, methylaluminoxane HDPE, high density poly(ethylene) APP, ammonium polyphosphate PPV, poly( p-phenylenevinylene) EVA, ethylene vinyl acetate copolymer SEC, size exclusion chromatography SBS, symmetric(styrene–butadiene–styrene) block copolymer PDDA, poly(dimethyldiallylammonium) PVA, poly(vinyl acetate) HRR, heat release rate PI, poly(imide) Mechanical properties PVOH, poly(vinyl alcohol) PFT, polymerization-filling technique TEM, transmission electron microscopy AFM, atomic force microscopy Layered silicate nanocomposites PVP, poly(2-vinyl pyridine) PS, poly(styrene) PBD, poly(butadiene)
ISSN:	0927-796X, 1879-212X, 1879-212X
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Popis
Shrnutí:	This review aims at reporting on very recent developments in syntheses, properties and (future) applications of polymer-layered silicate nanocomposites. This new type of materials, based on smectite clays usually rendered hydrophobic through ionic exchange of the sodium interlayer cation with an onium cation, may be prepared via various synthetic routes comprising exfoliation adsorption, in situ intercalative polymerization and melt intercalation. The whole range of polymer matrices is covered, i.e. thermoplastics, thermosets and elastomers. Two types of structure may be obtained, namely intercalated nanocomposites where the polymer chains are sandwiched in between silicate layers and exfoliated nanocomposites where the separated, individual silicate layers are more or less uniformly dispersed in the polymer matrix. This new family of materials exhibits enhanced properties at very low filler level, usually inferior to 5 wt.%, such as increased Young’s modulus and storage modulus, increase in thermal stability and gas barrier properties and good flame retardancy.
Bibliografie:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 scopus-id:2-s2.0-0033728444
ISSN:	0927-796X 1879-212X 1879-212X
DOI:	10.1016/S0927-796X(00)00012-7