Parametric study of vapor-phase polymerization of pyrrole: An improvement in reproducibility

Jousse, F.; Olmedo, L.

doi:10.1016/0379-6779(91)91088-r

Cited by 9 publications

(1 citation statement)

References 5 publications

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“…In the present work, we succeeded in the construction of 3D porous composites formed exclusively of PPy and CNTs, and incubated astrocytic cells to evaluate its biocompatibility. We have developed a new and easy strategy, based on the wellknown vapor phase polymerization (VPP), 39 where pyrrole monomer vapor is polymerized inside a template-containing CNT and an oxidant agent. Astrocytes, which form part of the glia, provide support and nutrients to neurons in a healthy environment, thus have an essential function in the regeneration of neuronal tissue.…”

Section: ■ Introductionmentioning

confidence: 99%

Three-Dimensional Conductive Scaffolds as Neural Prostheses Based on Carbon Nanotubes and Polypyrrole

Alegret

Dominguez‐Alfaro

González‐Domínguez

et al. 2018

ACS Appl. Mater. Interfaces

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of the cells, including protein secretion and gene expression, among others, and using other kind of electroactive cells, as well as the growth potential on primary cells by in vivo implantation of the scaffolds in injured spinal cord. We will also develop further strategies and scaffolds with lower YM for application in brain and cardiac tissues. ASSOCIATED CONTENT Supporting Information includes: photographs of the cell device manufactured for the conductivity measurements, XPS analyses, cyclic compression graphs, and supplementary TGA plots and data, SEM images, µCT analyses, and in vitro assays (Zstacks).

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Section: ■ Introductionmentioning

confidence: 99%

Three-Dimensional Conductive Scaffolds as Neural Prostheses Based on Carbon Nanotubes and Polypyrrole

Alegret

Dominguez‐Alfaro

González‐Domínguez

et al. 2018

ACS Appl. Mater. Interfaces

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Microwave absorbing materials based on conducting polymers

1993

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Microwave absorbing materials have been based on a combination of compounds in order to generate dielectric and/or magnetic losses. These materials, which have a number of industrial applications, have, however, limitations linked chiefly with constraints of surface mass. Also, the use of dielectric compounds obtained by dispersion of conductive additives (carbon black, graphite, metallic powders) requires the control of both the rate of addition, and the phenomenon of particle aggregation, with an extremely high level of reproducibility. In fact, the function of these materials remains linked to the control of inter-particle electronic transfer. The parameter measured, i.e. (E', c") is thus dependent on the texture of the percolation aggregates and as a result governs the conditions of dispersion.The object of this article is to show how conductive polymers can supply a solution to this type of problem. From the surface mass point of view, conductive polymers supply solutions with respect to weight reduction, especially in the framework of applications requiring a good compromise between absorption bandwidth and surface mass. Thus, the frequency dependency of (E', E") of several conductive polymers, or the association of these materials with different substrates allows the design of new absorbents. From the reproducibility point of view, the growth methods used during the polymer synthesis lead to materials showing stable property levels compared to materials based on dispersions of conductive particles (in particular carbon black) in an insulating phase.As only the formulation parameters control the final properties of the material, the chemistry of conductive polymers offers a wide diversity of synthetic methods allowing both the integration of the conductive element in different media (matrix, reinforcement, honeycomb) and the construction of complex structures, giving not only absorption of microwaves but also conforming to environmental constraints. From the point of view of the applications of conductive polymers, several papers have dealt with the produc

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Preparation of polypyrrole–polyurethane composite foam by vapor phase oxidative polymerization

He¹,

Omoto²,

Yamamoto³

et al. 1995

J of Applied Polymer Sci

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SYNOPSISConductive polypyrrole-polyurethane composite foam was prepared by vapor phase polymerization of pyrrole on polyurethane foam using mixtures of FeCl, and Feel3 as oxidants. With increase in the FeC12/FeC13 ratio, the conductivity of the composite foam increased in spite of the decrease in polypyrrole content in the composite foam. Both conductivity and polypyrrole content increased with increase in the oxidant content in polyurethane. The conductivity of the composite foam is also a function of reaction temperature, and lower reaction temperatures were preferable for higher conductivity. The composite foam exhibited tensile strength and elongation comparable to those of pristine polyurethane foam.

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Parametric study of vapor-phase polymerization of pyrrole: An improvement in reproducibility

Cited by 9 publications

References 5 publications

Three-Dimensional Conductive Scaffolds as Neural Prostheses Based on Carbon Nanotubes and Polypyrrole

Three-Dimensional Conductive Scaffolds as Neural Prostheses Based on Carbon Nanotubes and Polypyrrole

Microwave absorbing materials based on conducting polymers

Preparation of polypyrrole–polyurethane composite foam by vapor phase oxidative polymerization

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