Poly Pyrrole
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Electrosynthesis and optical characterization of poly(p-phenylene), polypyrrole and poly(p-phenylene)-polypyrrole films
Poly(p-phenylene) (PPP), polypyrrole (PPY), and poly(p-phenylene-pyrrole) (PPP-PPY) films were electrochemically synthesized in acetronitrile by cyclic voltammetry. For comparison purposes, the films were characterized by cyclic voltammetry in a monomer-free solution, and their optical responses were also obtained in the UV-VIS range of energy after varying
Mat. Res.. Publicado em: 18/02/2014
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2. Developmento of polypyrrole SPME extraction phase and evaluation of the SPME/LC and SBSE/LC techniques to antidepressants plasma samples analyses / Desenvolvimento da fase extratora SPME de poli(pirrol) e avaliação das técnicas SPME/LC e SBSE/LC para análises de antidepressivos em amostras de plasma
A depressão em idosos é uma desordem persistente e recorrente, resultado do stress psicossocial ou efeito de doenças fisiológicas, que podem acarretar a desabilidade do indivíduo, aumento dos sintomas das doenças clínicas, na maior utilização dos serviços de saúde e altas taxas de suicídios.A monitorização terapêutica permite a ndividualizaç�
Publicado em: 2008
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3. Synthesis and determination of the electron affinity, ionization potential and energy of band prohibited of electroluminescent polymers / Síntese e determinação da afinidade eletrônica, potencial de ionização e energia de banda proibida de polímeros eletroluminescentes
In this work we describe the electrochemical and optical aspects of a series of electrochemically synthesized blue-electroluminescent conjugated polymers. The materials employed here comprised poly(p-phenylene) (PPP), poly(pyrro1e) (PPI), poly(3-methylthiophene) (P3MET), poly(p-pheny1ene-pyrrole) (CPPI) copolymer and poly(p-phenylene3methyIthiophene) (CP3MET
Publicado em: 2004
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4. Glucose Amperometric Biosensor Based on the Co-immobilization of Glucose Oxidase (GOx) and Ferrocene in Poly(pyrrole) Generated from Ethanol / Water Mixtures
Neste trabalho é apresentada a co-imobilização de GOx e ferroceno numa matriz polimérica através de um método simples de uma etapa. Esse procedimento para a imobilização de ferroceno como mediador da reação enzimática não envolve a modificação do monômero ou da enzima, o que poderia levar à perda de sua atividade. A incorporação de ferrocen
Journal of the Brazilian Chemical Society. Publicado em: 2001-12
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5. Development of electrochemical interfaces based on poly(pyrrole) and lamellar vanadium pentoxide xerogel nanocomposites. / "Desenvolvimento de interfaces eletroquímicas à base de nanocompósitos de poli(Pirrol) e xerogel lamelar de pentóxido de vanádio"
Esta tese apresenta um estudo detalhado das propriedades eletroquímicas dos nanocompósitos de V2O5.nH2O e poli(pirrol) sobre a superfície de eletrodos. Demonstramos aqui que pelo controle de parâmetros de síntese é possível alterar a composição das interfaces eletroquímicas dos eletrodos modificados, fazendo com que o poli(pirrol) esteja por cima,
Publicado em: 2001
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6. Sintese, propriedades e aplicações do poli-pirrol dopado com anions anfifilicos
Research on intrinsically conducting polymers has grown in the last years due their potential technological applications. They can be reversively driven to their conductive or insulator states by a redox process. This involves the introduction or ions into the material in order to maintain the charge eletroneutrality and, generally, occurs during polymer syn
Publicado em: 1992
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7. Preparation of a DNA matrix via an electrochemically directed copolymerization of pyrrole and oligonucleotides bearing a pyrrole group.
A new methodology for the preparation of addressed DNA matrices is described. The process includes an electrochemically directed copolymerization of pyrrole and oligonucleotides bearing on their 5' end a pyrrole moiety introduced by phosphoramidite chemistry. The electro-controlled synthesis of the copolymer (poly-pyrrole) gives, in one step, a solid conduct
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8. Rational design of substituted tripyrrole peptides that complex with DNA by both selective minor-groove binding and electrostatic interaction with the phosphate backbone.
The structures of the compounds we call 3a, 3b, and 3c-compounds that incorporate (i) the tripyrrole peptide of the minor-groove-binding distamycin class of compounds and (ii) polyamine ligands that extend from the minor groove and can interact with phosphodiester bonds--were arrived at by computer-graphics designing by using the x-ray structure of distamyci