Electroluminescence in light emitting polymers featuring...

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 101/12 (2006.01) C08F 26/06 (2006.01) C08F 28/06 (2006.01) C08G 61/12 (2006.01) C09K 11/06 (2006.01) H01B 1/12 (2006.01) H01L 51/30 (2006.01) H01L 51/50 (2006.01) H01L 51/52 (2006.01) H05B 33/14 (2006.01)

Patent

CA 2262839

In general terms, the present invention includes a light emitting polymeric material, the light emitting polymeric material capable of producing electroluminescence upon being provided with a flow of electrons, the light emitting polymeric material comprising a plurality of polymeric chains comprising polymeric chains each having substituent moieties of sufficient number and size and extending from the polymeric chain and about a substantial portion of the circumference about the polymer chain so as to maintain the polymeric chains in a sufficiently deaggregated state (referred to herein as a "strapped" polymer), so as to substantially prevent the redshifting of the electroluminescence and the lowering of light emission efficiency of the electroluminescence.

De manière générale, la présente invention se rapporte à un matériau polymère luminescent susceptible de produire une électroluminescence lorsqu'il reçoit un flux d'électrons, et comprenant une pluralité de chaînes polymères comportant chacune des fractions de substitution en un nombre et d'une grandeur suffisante, s'étendant à partir de la chaîne polymère et sur une partie importante de la circonférence de ladite chaîne de façon à maintenir les chaînes en un état suffisamment désagrégé (désigné ici comme un polymère "bridé") pour empêcher presque entièrement le décalage vers le rouge et l'affaiblissement de l'efficacité d'émission lumineuse de l'électroluminescence.

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