Conductor Polymer
Mostrando 1-8 de 8 artigos, teses e dissertações.
-
1. Implantação iônica de baixa energia em polímero para desenvolvimento de camadas compósitas nanoestruturadas condutoras litografáveis. / Low energy ion implantation into polymers to develop conductive composite layers for lithography.
Electronics using polymers instead of silicon is a recent research area with promising economic perspectives. Polymer with metallic particles composites presents interesting electrical, magnetic and optical properties and they have been produced by a broad variety of techniques. Metal ion implantation using plasma is one of the used methods to obtain conduct
Publicado em: 2010
-
2. Study of electrochemical detection, using modified electrodes policinilina in view the development of microsensors for the detection of food additives / Estudo da detecção eletroquimica, empregando eletrodos modificados com policinilina, tendo em vista o desenvolvimento de microssensores para a detecção de aditivos alimentares
This work presents a study for development of a microsensor for electrochemical analysis that can be applied in detection of food additives as sulfites and ascorbic acid. The development of low cost electrochemical instrumentation as alternative for commercial instrumentation available is a solution for any problems that appear in electrochemical sensors res
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/12/2009
-
3. SÃntese, caracterizaÃÃo e aplicaÃÃo de polianilina obtida atravÃs de uma nova rota fotoquÃmica
In this work we present an alternative route to obtain polyanilin e silver composite (PANI/Ag). The method consists to use light of wavelength 254 nm and aqueous solution of silver nitrate (AgNO3) to promote the anilinium mono mer polymerization and the consequent silver ions reduction. The composite was characterized by microanalysis technique, X-ray diffra
Publicado em: 2006
-
4. Reciclagem de fios e cabos elétricos. / Recycling of wires and eletrical cables.
The electro-electronics industry follows increasing the amount of scraps annually generated. For this reason it is necessary to recycle, so that it prevents the waste of raw materials and not renovable natural resources. The majority of the electro-electronic products do not receive any treatment after use and is disposed in municipal landfills together with
Publicado em: 2006
-
5. Novas rotas de preparaÃÃo de filmes de polianilina e caracterizaÃÃo dosimÃtrica para radiaÃÃo gama em altas doses
Este trabalho apresenta um novo material polimÃrico condutor, a base de polianilina (PANI) na forma de filmes finos, que foi utilizado na confecÃÃo de dispositivos com fins dosimÃtricos. Para o preparo dos dispositivos os filmes foram depositados sobre as superfÃcies de substratos de poli(metacrilato de matila) (PMMA). Esta deposiÃÃo foi feita atravÃ
Publicado em: 2003
-
6. Intercalação de polianilina em composto lamelar e suas propriedades eletro - efotoeltroquimica
Layered compounds, such as Tin 2-carboxyethylphosphonate, suffer intercalation reactions. In these reactions the layered compound is called host and the intercalated species is the guest. In our case, the acid hydrogens of the host can be exchanged with other cations like Fe. This cations can be used as oxidizing agent in the polymerization of aniline in the
Publicado em: 1999
-
7. Preparação e caracterização de nanocompositos organo-inorganicos envolvendo fosfatos de metais tetravalentes e polimeros condutores
Acid cerium (IV) phosphates (CeP) were prepared and the influence of synthetical conditions, such as reagents PO4/Ce molar ratios, temperature and reaction time, on the structural and morphological properties were studied. Several techniques like X-ray diffraction, infrared, Raman and P nuclear magnetic resonance spectroscopies were used to follow the struct
Publicado em: 1999
-
8. 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