Browsing by Subject "Raman spectroscopy"
Now showing items 1-10 of 13
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A comparative study of epoxy and polyurethane based coatings containing polyaniline-DBSA pigments for corrosion protection on mild steel
(Elsevier B.V., 2013-05-01)Organic coatings based on epoxy and polyurethane matrices containing polyaniline doped with dodecyl benzene sulfonic acid (Pani-DBSA) were prepared and applied over steel plates (SAE 1020). the plates were submitted to ...
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Dissolution and doping of polyaniline emeraldine base in imidazolium ionic liquids investigated by spectroscopic techniques
(Wiley-Blackwell, 2007-03-01)Polyaniline is a model molecular system in the study of conductive polymers. Ionic liquids, on the other hand, are becoming more and more a very convenient alternative for conventional organic solvents. the dissolution of ...
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Improvement of carbon dioxide absorption by mixing poly(ethylene glycol) dimethyl ether with ammonium-based ionic liquids
(Elsevier Science Bv, 2018)Mixtures of the ionic liquid butyltrimethylammonium bis(trifluoromethylsulfonyl)imide, [N-4111][NTf2] with poly(ethylene oxide) polymers, PEO, of different molecular weights were investigated for CO2 capture. The liquid ...
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In vivo confocal Raman spectroscopy for intrinsic aging and photoaging assessment
(Elsevier Ireland Ltd, 2017)Background: In vivo confocal Raman spectroscopy is a non-invasive method to assess either the epidermis or the dermis composition. Few studies have focused on dermis collagen alterations through intrinsic aging and photoaging. ...
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Intralamellar structural modifications related to the proton exchanging in K4Nb6O17 layered phase
(Elsevier B.V., 2010-04-01)Basic structural aspects about the layered hexaniobate of K4Nb6O17 composition and its proton-exchanged form were investigated mainly by spectroscopic techniques. Raman spectra of hydrous K4Nb6O17 and H2K2Nb6O17 center dot ...
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Morphological and chemical changes in dentin after using endodontic agents: Fourier transform Raman spectroscopy, energy-dispersive x-ray fluorescence spectrometry, and scanning electron microscopy study
(Spie-soc Photo-optical Instrumentation Engineers, 2012-07-01)We examine the morphological and chemical changes in the pulp chamber dentin after using endodontic agents by scanning electron microscopy (SEM), Fourier transform Raman spectroscopy (FT-Raman), and micro energy-dispersive ...
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Probing the local environment of hybrid materials designed from ionic liquids and synthetic clay by Raman spectroscopy
(Elsevier B.V., 2014-03-25)Hybrid organic-inorganic material containing Laponite clay and ionic liquids forming cations have been prepared and characterized by FT-Raman spectroscopy, X-ray diffraction, and thermal analysis. the effect of varying the ...
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Production and Characterization of Activated Carbon Fiber from Textile PAN Fiber
(Inst Aeronautica & Espaco-Iae, 2017)This paper presents the preparation and characterization of carbon fiber felt and activated carbon fiber felt from textile polyacrylonitrile fiber. Carbon fibers are usually related to aircraft manufacturing or high ...
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Raman spectra of polymer electrolytes based on poly(ethylene glycol) dimethyl ether, lithium perchlorate, and the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate
(Elsevier B.V., 2010-11-18)Raman spectra of polymer electrolytes based on poly(ethylene glycol) dimethyl ether (PEGdME) with LiClO(4), PEGdME/LiClO(4), and the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate, PEGdME/[bmim]PF(6), are ...
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Raman spectroscopy for differential diagnosis of endophthalmitis and uveitis in rabbit iris in vitro
(Elsevier B.V., 2010-09-01)We developed a diagnostic tool to differentiate between endophthalmitis and uveitis using Raman spectroscopy. Twenty-two New Zealand rabbits with endophthalmitis induced by Staphylococcus aureus (10 animals), noninfectious ...
