Solid Polymer Electrolytes
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Eco-Friendly Luminescent Hybrid Materials Based on EuIII and LiI Co-Doped Chitosan
Biopolymer-based materials have been of particular interest as alternatives to synthetic polymers due to their low toxicity, biodegradability and biocompatibility. Among them, chitosan is one of the most studied ones and has recently been investigated for the application as solid state polymer electrolytes. Furthermore, it can serve as a host for luminescent
J. Braz. Chem. Soc.. Publicado em: 2015-12
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2. Solid polymer electrolytes based in sodium alginate. / Eletrólitos sólidos poliméricos a base de alginato de sódio
The aim of this study was the preparation and characterization of sodium alginate membranes plasticized with glycerol. The samples were obtained with different concentration of acetic acid or lithium perchlorate in order to use them as solid polymer electrolytes (SPE) in electrochemical devices, such as sensors and batteries. The films were characterized by
Publicado em: 2010
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3. Preparation and characterization solid polymer electrolytes based of commercial gelatin for application in solar cells. / Preparação e caracterização de eletrólitos sólidos poliméricos à base de gelatina comercial para aplicação em células solares.
O presente trabalho visou estudar e caracterizar eletrólitos sólidos poliméricos (ESP) à base de gelatina plastificada com glicerol, entrecruzada com formaldeído e contendo LiI/I2 para a aplicação em células solares. O objetivo foi obter os eletrólitos à base de gelatina comercial (Dr. Oetker) de origem animal, uma vez que a mistura de aminoácidos
Publicado em: 2010
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4. Nanocomposite polymer electrolytes based on poly(oxyethylene) and cellulose whiskers
Solid lithium-conducting nanocomposite polymer electrolytes based on poly(oxyethylene) (POE) were prepared from high aspect ratio cellulosic whiskers and lithium imide salt, LiTFSI. The cellulosic whiskers were extracted from tunicate -a sea animal- and consisted of slender parallelepiped rods that have an average length around 1 µm and a width close to 15
Polímeros. Publicado em: 2005-06
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5. Compatibility and thermal stability studies on plasticized PVC/PMMA blend polymer electrolytes complexed with different lithium salts
The lithium salt (x) (X= LiAsF6, LiPF6, LiN(C2F5SO2)2 , LiN(CF3SO2)2, LiBF4) was complexed with a host of poly(vinyl chloride) (PVC)/ poly(methyl methacrylate) (PMMA) blend polymer and plasticized with a combination of ethylene carbonate (EC) and propylene carbonate(PC). The polymer electrolyte films were prepared for constant PVC/PMMA blend ratio. The elect
Polímeros. Publicado em: 2005-03
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6. Solid polymer electrolytes based on polysacharide: synthesis and characterization. / Eletrólitos sólidos poliméricos à base de polissacarídeos: síntese e caracterização.
The synthesis and characterization of new types of solid polymer electrolytes based on hydroxyethyl and hydroxypropyl cellulose grafted with different polyethers were investigated. The synthesis is based on the reaction between the cellulose derivative and mono and difunctional isocyanates prepared from amines of polyethylene oxide and polypropylene oxide. I
Publicado em: 2000
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7. Desenvolvimento de um capacitor eletroquimico polimerico
Conducting polymers represent an interesting class of materiaIs for using in electrochemical devices. These materials have important characteristics such as; changing from no conductor electronic state to conductor electronic state by redox process and changing of coloration by the application of an extern potential (electrochromism). The utilization of cond
Publicado em: 1997
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8. Response of microbial adhesives and biofilm matrix polymers to chemical treatments as determined by interference reflection microscopy and light section microscopy.
The polymers involved in the adhesion of Pseudomonas fluorescens H2S to solid surfaces were investigated to determine whether differences between cell surface adhesives and biofilm matrix polymers could be detected. Two optical techniques, i.e., interference reflection microscopy (IRM) and light section microscopy (LSM), were used to compare the responses of