Sulfonated polyaniline salt compositions, processes and uses

C - Chemistry – Metallurgy – 08 – F

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C08F 128/02 (2006.01) C08G 73/02 (2006.01) G02B 6/26 (2006.01) G02F 1/01 (2006.01) G11B 7/00 (2006.01) G11B 7/245 (2006.01) H01B 1/12 (2006.01) H01P 1/00 (2006.01) H03H 7/24 (2006.01)

Patent

CA 2067168

Sulfonic acid-substituted polyaniline salt compositions, processes for their preparation and uses therefor are disclosed. The sulfonated polyaniline salt compositions have fast electronic and optical responses to electrochemical potentials, improved environmental stability, and improved solubility. A process for producing the sulfonated polyaniline salt compositions comprises reacting a sulfonated polyaniline polymer with an aqueous basic solution. The sulfonated polyaniline compositions are useful for absorption of electromagnetic radiation, as a high density erasable date storage medium for use in information storage and processing applications, and to provide electronic, chemical, electrochemical, and optical microelectronic devices which use and control the chemical and physical properties of the sulfonated polyaniline salt compositions.

L'invention concerne des compositions de sels de polyaniline substitués par l'acide sulfonique, des procédés de préparation de ces compositions et leurs utilisations. Les compositions de sels de polyaniline sulfonés ont des réponses électroniques et optiques rapides à des potentiels électrochimiques, une stabilité améliorée aux conditions de l'environnement et une meilleure solubilité. Un procédé de production de ces compositions de sels de polyaniline sulfonés consiste à faire réagir un polymère de polyaniline sulfoné avec une solution basique aqueuse. Les compositions de polyaniline sulfonées sont utiles pour l'absorption de rayonnement électromagnétique, en tant que support de stockage de données effaçables de densité élevée utilisées dans le stockage d'informations et dans des applications de traitement de données et pour la fabrication de dispositifs électroniques, chimiques, électrochimiques et optiques microélectroniques qui utilisent les propriétés chimiques et physiques des compositions de sels de polyaniline sulfonés.

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