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dc.contributor.authorSmitha, V S-
dc.contributor.authorManjumol, K A-
dc.contributor.authorGhosh, S K-
dc.contributor.authorBrahmakumar, M-
dc.contributor.authorPavithran, C-
dc.contributor.authorPerumal, P-
dc.contributor.authorWarrier, K G K-
dc.date.accessioned2014-01-07T11:15:48Z-
dc.date.available2014-01-07T11:15:48Z-
dc.date.issued2011-
dc.identifier.citationJournal of the American Ceramic Society 94(6):1731-1736;Jun 2011en_US
dc.identifier.issn0002-7820-
dc.identifier.urihttp://ir.niist.res.in:8080/jspui/handle/123456789/1016-
dc.description.abstractBright red pigments, based on montmorillonite (MM) intercalated with rhodamine 6G (R6G) have been developed for the purpose of pigmenting polyethylene-based polymers. The cationic dye R6G was intercalated into NH(4)+-saturated MM in a slightly acidic medium. The resultant inorganic-organic MM complex was characterized using X-ray diffraction, thermogravimetric analysis, Fourier transform infrared (FTIR) spectra, diffused reflectance, and color measurements. Expansion in basal spacing from an initial 11.3 to similar to 15.8 A was detected in the X-ray profile, confirming clay intercalation with R6G. The average particle size of the intercalated clay was 35 nm as measured by photon scattering. Frequency shifts of the C-H bending vibration from 724 to 744 cm-1 and that of the carbonyl (> C=O) stretching vibration from 1647 to 1666 cm-1 have been observed as a result of intercalation in FTIR spectra. Improvement in thermal stability for the intercalated MM was indicated by results from thermal analysis. The intercalated colored polyethylene-pigment showed enhanced stability under exposure to ultraviolet radiation of wavelength of 200-400 nm. The values for color coordinates were a*=53.45 and b*=9.62 from the color measurements.en_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.subjectLuminescenceen_US
dc.subjectPhotodegradationen_US
dc.subjectPolymerizationen_US
dc.subjectNanocompositesen_US
dc.subjectCation-exchangeen_US
dc.titleRhodamine 6G Intercalated montmorillonite nanopigments-polyethylene composites: Facile synthesis and ultravioletstability studyen_US
dc.typeArticleen_US
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