Organophilic montmorillonite

Y. Cai, Y. Hu, L. Song, S. Xuan, Y. Zhang, Z. Chen, and W. Fan, Catalyzing carbonization function of ferric chloride based on ABS copolymer/organophilic montmorillonite nanocomposites, Polym. Degrad. Stabil., 2007, 92 490 196. 

CIL has influence on fire-retardant systems through viscosity as well. Nonmodified montmoril-lonite (NMM) and organophilic montmorillonite (OMM) have been introduced into ethylene vinyl-acetate (EVA) copolymer (clay content was 10%) and compared in AR 2000 type rheometer. (Measurements were performed at 210°C and 0.5% amplitude. The applied frequency range was co = 1-600 1/s.)... 

Intercalation of organic molecules into layered host lattice produces a variety of organic-inorganic hybrid materials. The solvothermal method provides a reaction system that allows application of high temperatures and therefore is a powerful technique for preparation of intercalation compounds. Exfoliation of layers may occur because of applied high temperatures. For example, exfoliated poly-ethylene/montmoriUonite nanocomposites were reported to be prepared by solvothermal reaction of organophilic montmorillonite with polyethylene in toluene at 170°C for 2... 

Taleb, M. F. A., Hegazy, D. E., and S. A. Ismail. 2012. Radiation synthesis, characterization and dye adsorption of alginate-organophilic montmorillonite nanocomposite. Carbohydrate Polymers 87 2263-2269. 

Nanocomposite fibers have been produced by compounding a semi-aromatic poly(m-xylene adipamide) with an organophilic montmorillonite [61]. Partially oriented fibers of the nanocomposite were obtained by melt spinning on a mulfifilament fiber extrusion system. The effect of the drawing velocity on... 

Burgentzl D., Duchet, J., Gerard, J. R, Jupin, A., and Fillon, B. 2004. Solvent-based nanocomposite coatings I. Dispersion of organophilic montmorillonite in organic solvents. Colloid and Interface Science 278 26-39. 

Passaglia, E., Bertoldo, M., CiardeUi, E, Prevosto, D., and Lucchesi, M. 2008b. Evidences of macromolecular chains confinement of ethylene-propylene copolymer in organophilic montmorillonite nanocomposites. European Polymer Journal 44 1296-1308. 

Li, H.-Q. Zeng, X.-R. Deng, H.-P., Study on the Synthesis, Structure, and Properties of Polydimethylsiloxane-Acrylate/Organophilic Montmorillonite Nanocomposite Emulsions. J. Appl. Polym. Sci. 2010,118, 63-68. 

PCNs, acid-activated bentonites, organophilic montmorillonites, and pillared clays with designed micro- and mesoporosity (Giiven, 2009) find specific and selective applications as catalysts and catalyst carriers in the petrochemical industry, and also in environmental applications. The capabUily of smectites to absorb not... 

Wang, Guan-Flai. Zhang, Li-Ming. (2007). Reinforcement in thermal and viscoelastic properties of pwlystyrene by in-situ incorporation of organophilic montmorillonite Original, Ap>phed Clay Sdence. 38.17-22. 

Pozsgay A, Fi ater T, Szazdi L, Muller P, Sajo I and Pukauszky B (2004) Gallery structure and exfoliation of organophilized montmorillonite Effect on composite properties, Europ Polym J 40 27-36. 

It has been found that the interaction of intercalated and/or exfoliated nanoparticles may restrict the mobility of the matrix polymer chains, which lead to an increase of Tg values, as observed in nanocomposites of polyamide-12-layered silicates [102], nitrile rubber-organophilic montmorillonite [103], natural rubber-montmorillonite [104], and EVA-day [105]. A slight increase with the organosurface treatment in Tg values was noticed in poly(vinyl chloride)-clay [106,107], poly(vinyl chloride)-CNTs [108], polyurethane-montmorillonite [109-111], LLDPE-layered tetrasilisic fluoromica [112], PP-montmorillonite [113-115], PP-sUica [116], and styrene-butadiene rubber [117]. 

Sekine T, Yoshida K, Matsuzaki F. 1999. A novel method tor preparing oil-in-water-in-oil type multiple emulsions using organophilic montmorillonite clay mineral. J Surfact Detergents 2 309-315. 

Han B, Cheng A, Ji G, Wu S and Shen J (2004) Effect of organophilic montmorillonite on pol5Tirethane/montmorillonite nanocomposites, J Appl Polym Sci 91 2536-2542. Choi W J, Kim S H, Kim Y J and Kim S C (2004) Synthesis of chain-extended organifier and properties of polyurethane/clay nanocomposites, Po/ymer 45 6045-6057. Osman M A, Mittal V, Morbidelli M and Suter U W (2003) Polyurethane adhesive nanocomposites as gas permeation barrier, Macromolecules 36 9851-9858. 

The polymer-clay nanocomposites with core-poly(butyl acrylate) (PBA) intercalated organophilic montmorillonite (OMMT) and shell-PS were successfully prepared using y-irradiation emulsion polymerization by Wang et al., as shown in Figure 8.3. The prepared core-PBA-OMMT and shell-PS structure nanocomposites can be incorporated in a pure PS matrix the impact strength of the blend was dramatically improved and the tensile strength of PS also remained high. 

Pu X and Qutubuddin S (2001), Polymerclay nanocomposites exfoliation of organophilic montmorillonite nanolayers in polystyrene . Polymer, 42, 807. 

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