Synthesis of squaraine-based alternated π-conjugated copolymers: from conventional cross-coupling reactions to metal-free polycondensation | Zendy

Jules Oriou | Zendy; Fay Ng | Zendy; G. Hadziioannou | Zendy; Guillaume Garbay | Zendy; Marie Bousquet | Zendy; Vignau Laurence | Zendy; Éric Cloutet | Zendy; Cyril Brochon | Zendy

Open Access

Synthesis of squaraine-based alternated π-conjugated copolymers: from conventional cross-coupling reactions to metal-free polycondensation

Author(s) -

Jules Oriou,

Fay Ng,

G. Hadziioannou,

Guillaume Garbay,

Marie Bousquet,

Vignau Laurence,

Éric Cloutet,

Cyril Brochon

Publication year - 2014

Publication title -

polymer chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.403

H-Index - 117

eISSN - 1759-9962

pISSN - 1759-9954

DOI - 10.1039/c4py00896k

Subject(s) - stille reaction , conjugated system , condensation polymer , copolymer , coupling reaction , polymer chemistry , metal , coupling (piping) , chemistry , materials science , photochemistry , polymer , organic chemistry , catalysis , metallurgy

International audienceLow band-gap pi-conjugated copolymers based on squaraine units alternated with thiophene or benzothiadiazole moieties were synthesized through Suzuki and Stille cross-coupling reactions, and through a metal-free polycondensation process using squaric acid. The metal-free polymerizations afforded higher molecular weights polymers, showing bright future for the synthesis of small band-gap pi-conjugated polymers via less cost-effective and more environmental-friendly procedures. Additionally, the synthesized materials showed encouraging optoelectronic properties

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