Polymers comprising a fluorinated carbonate moiety

C - Chemistry – Metallurgy – 08 – G

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Details

C08G 64/02 (2006.01) C08G 64/14 (2006.01) C08G 64/16 (2006.01) G02B 1/04 (2006.01) G02B 6/02 (2006.01) G02B 6/12 (2006.01) G02F 1/01 (2006.01)

Patent

CA 2282622

The invention pertains to a cross-linkable fluorinated polymer comprising the carbonate moiety having formula (I) wherein n=1-10 and m=0-9. Preferably, the polymer further comprises a cross-linkable moiety derived from a diol selected from (II) and (III) wherein A, A1, and A2 are independently a bond or C1-12 alkylene, or together with the carbon atoms to which they are bonded form a 5- or 6-membered ring; B is independently O or C1-4 alkyl; Q is -CO-C(=E)D, wherein D is H or C1-4 alkyl; and E is C1-6 alkylidene;and each of the alkyl, alkylene, and alkylidene groups may be halogenated. The polymers of the invention can be used in cladding layers or waveguides, in particular for thermo-optical devices.

L'invention concerne un polymère fluoré réticulable comprenant la fraction de carbonate présentant la formule (I) dans laquelle n=1-10 et m=0-9. De préférence, le polymère comprend, en outre une fraction réticulable dérivée d'un diol sélectionné parmi (II) et (III) et où A, A¿1? et A¿2? sont indépendamment une liaison ou de l'alkylène C¿1-12?, ou avec les atomes de carbone auxquels ils sont liés forment une chaîne à 5 ou 6 éléments. B est indépendamment O ou de l'alkyle C¿1-4?; Q est -CO-C(=E)D, où D est H ou alkyle C¿1-4?; et E est alkylidène C¿1-6?. Chacun des groupes alkyle, alkylène et alkylidène peuvent être halogénés. Les polymères, selon l'invention, peuvent être utilisés dans des couches de métallisation ou des guides d'ondes, en particulier, pour des dispositifs thermiques et optiques.

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