Tetrazine monomers and copolymers for use in organic...

Details Tetrazine monomers and copolymers for use in organic... Tetrazine monomers and copolymers for use in organic...

C - Chemistry, Metallurgy

07

D

C07D 409/14 (2006.01) C08G 61/12 (2006.01) C08J 5/18 (2006.01) H01L 51/46 (2006.01)

Patent

CA 2744642

Copolymers of formula (I): (see formula I) where each A is S, Se or C=C; each x is an integer from 1 to 4; each R1 is independently H, F, CN or a C1-C20 linear or branched aliphatic group; Ar is one or more substituted or unsubstituted aromatic units; and, n is an integer 5 or greater, can be formed into films or membranes that are useful as active layers in organic electronic device, such as PV solar cells, providing high power conversion efficiencies and good thermal stability. Such copolymers may be synthesized from monomers of formula (II): (see formula II) by Stille or Suzuki coupling reactions. Such monomers may be synthesized by a variation of the Pinner synthesis.

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