COPOLYMERS BASED ON DERIVATIVES OF SUBSTITUTED CYCLOPENTANONE-BITHIOPHENE AND SYNTHESIS METHOD THEREOF Russian patent published in 2011 - IPC C08G61/12 H01L29/00 

FIELD: chemistry.

SUBSTANCE: invention concerns chemical engineering of high-molecular compounds. Described are copolymers based on derivatives of substituted cyclopentanone-bithiophene of general formula (I), where X denotes S or a residue of a dicyanovinyl group of formula (II-a), or a monocyanovinyl group of general formula (II-b), of a ring residue selected from: dioxalane of general formula (II-c), tithiolane of general formula (II-d), dioxane of general formula (II-e), dithiane of general formula (II-f), where R₁ is CF₃, F, a C₂-C₈ perfluoroalkyl radical or an ester group - COO-A, where A is an alkyl radical C₁-C₂₀, a possibly branched or arylmethylene fragment which contains 7-20 carbon atoms in the structure; R₂ is H or a CH₃ radical; Ar denotes identical or different aromatic or heteroatomatic fragments selected from: a substituted or unsubstituted 1,4-phenylene of general formula (III-a), substituted cyclopentabithiophene of general formula (III-b), substituted or unsubstituted thiophene of general formula (III-c), substituted or unsubstituted 2,2'-bithiophene of general formula (III-d), where R₃ and R₄ denote H, F or a substitute selected from: possibly branched C₁-C₂₀ alkyl groups, R₅, R₆ denote a substitute selected from: C₆-C₂₀ alkyl groups, R₇, R₈, R₉, R₁₀, R₁₁ R₁₂ denote H or a substitute selected from: possibly branched C₁-C₂₀ alkyl groups. Described also is a method for synthesis of said copolymers, involving reaction of a compound of general formula (IV), where Y denotes a boric acid residue or ester thereof, or Br or J; X assumes values given above, with a reagent of general formula (V) under Suzuki reaction conditions, where Z denotes Br or J, provided that Y is a boric acid residue or ester thereof, or a boric acid residue or ester thereof, provided that Y denotes Br or J; Ar assumes values given above.

EFFECT: obtaining novel copolymers based on derivatives of substituted cyclopentanone-bithiophene, having a set or properties enabling their use as functional materials for organic electronics or photonics.

25 cl, 5 dwg, 1 tbl, 19 ex