Dynamically modifiable polymer coatings and devices

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

C09D 5/24 (2006.01) B63B 1/34 (2006.01) B63B 59/04 (2006.01) C09D 5/16 (2006.01) C09D 5/25 (2006.01) C09D 7/00 (2006.01) C23F 15/00 (2006.01) F04B 19/00 (2006.01)

Patent

CA 2556662

A dynamic coating includes at least one patterned polymeric layer for attachment to a surface. The polymeric layer includes at least one electrically conducting polymer including layer. Under influence of a dynamic signal applied to the polymeric layer, a contact angle of the polymeric layer dynamically and substantially increase, or decreases upon oxidation or reduction of the polymer. The polymeric layer an also expand or contract upon oxidation or reduction. The coating can be used for a variety of applications including a non-toxic biofouling preventative system, for forming low voltage electrowetting pumps, or for resisting corrosion of metal surfaces.

L'invention concerne un revêtement comprenant au moins une couche polymère à motifs destinée à être fixée à une surface. Ladite couche polymère comprend au moins un polymère électro-conducteur renfermant une couche. Sous l'influence d'un signal dynamique appliqué à la couche polymère, un angle de contact de ladite couche augmente ou diminue dynamiquement et sensiblement lors de l'oxydation ou de la réduction du polymère. Cette couche polymère peut également se dilater ou se rétracter lors de l'oxydation ou de la réduction. On peut utiliser le revêtement dans une variété d'applications, notamment, dans un système préventif de bio-encrassement non toxique, pour former des pompes d'électromouillage basse tension ou pour renforcer la résistance à la corrosion de surfaces métalliques.

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