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Poly(ethylene glycol) functionalized with an amino group (PEG-amine) was synthesized and characterized by proton NMR and FTIR spectroscopy. The polymer was complexed with lithium triflate (LiOTf) in varying ratios, and it was found that the composition (PEG-amine)8.0LiOTf exhibited a maximum ionic c...
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Polyaniline, poly( N-methyl aniline), poly(2-ethyl aniline) and poly(2-propyl aniline) were intercalated into layered molybdenum diselenide by using the exfoliation/restacking property of LiMoSe. MoSe was reacted with n-butyllithium to form LiMoSe. The LiMoSe was exfoliated in N-methylformamide (NMF...
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Highlights: [•] Facile de-intercalating Na from NaFeO2. [•] Formation of layered sodium hydrogen carbonate hydrate. [•] Intercalation chemistry on layered sodium hydrogen carbonate hydrate.
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MoSe2 has been encapsulated with a variety of guest species. This was achieved by first treating the MoSe2 with an excess of n-BuLi to form the lithiated phase of MoSe2 (LixMoSe2). The LixMoSe2 exfoliates readily in water or NMF to yield single layers of MoSe2. Addition of solutions of polymers, org...
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Poly(bis-methoxyethoxyethoxy phosphazene) (MEEP) and cryptand[2.2.2] (crypt) have been intercalated separately into sodium exchanged montmorillonite (Na-mont), and impedance spectroscopy indicates that ionic conductivities of the resulting nanocomposites (log sigma = -7.6 (Omega . cm)(-1) for MEEP/N...
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In this paper, we report on the direct intercalation of polypyrrole into MoS2. This was achieved by first synthesizing LiMoS2. The LiMoS2 was exfoliated by reaction with deionized water. Addition of a colloidal Suspension of polypyrrole in NMF to the single MoS, layers results in flocculation with e...
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A novel macrocycle-MoS2 nanocomposite has been synthesized and characterized using the exfoliation/restacking properties of LiMoS2, providing the first of a new family of intercalation compounds.
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Zinc salts of carboxylic acid-functionalized alkoxybiphenyl mesogens (also termed surfactomesogens), HO2C(CH2) n-1PhPhOCH3, n = 6 and 11, Ph = phenyl, were melt-blended with poly(4-vinylpyridine), mainly at a mesogen/(vinylpyridine) molar ratio of 0.5, and studied by infrared spectroscopy, different...
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A general approach for the encapsulation of a variety of saturated polymers between the layers of MoS2 giving electrically conductive lamellar compounds is reported.
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Polyaniline (PANI), poly(N-methyl aniline) (PMA), poly(ethyl aniline) (PEA) and poly(propyl aniline) (PPA) were synthesized in their salt form, and then characterized by FT-IR spectroscopy and charge transport measurements. The solubility of the polymers was tested in a variety of solvents and N-met...
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Poly[oxymethylene-(oxyethylene)] has been inserted in the gallery space Of MoS2 by using the exfoliation/re-stacking properties of LiMoS2. The resulting intercalation compound shows enhanced electronic conductivity due to a structural transformation of the MoS2 framework. The material was also chara...
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In this paper we report on the electrical characterization of conductive polyaniline and its derivatives. Conductivity measurements were also performed on the intercalated phases formed by the encapsulation of the polymers into layered molybdenum disulfide. These measurements were performed using th...
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The conductivity of an ordered polyphosphazene Na+-montmorillonite composite has been measured perpendicular (sigma(para)) and parallel (sigma(perp)) to the montmorillonite layers, and the sigma(para)/sigma(perp) is about 100. The temperature dependence of the conductivity is consistent with a coupl...
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