Asawapirom, Udom published the artcileDialkylcyclopentadithiophene polymers and copolymers, Application In Synthesis of 111865-47-5, the publication is Macromolecular Rapid Communications (2001), 22(10), 746-749, database is CAplus.
Poly(2,6-(4,4-dialkyl)-4H-cyclopenta[2,1-b:3,4-b’]dithiophene) (PCPDT) homopolymers and poly[(2,7-(9,9-dialkyl)fluorene)-co-(2,6-(4,4-dialkyl)-4H-cyclopenta[2,1-b:3,4-b’]dithiophene)] (PF/PCPDT) copolymers have been synthesized according to Yamamoto with Ni(COD)2 (or NiCl2/Zn in the case of the homopolymer). PCPDT is characterized by a red-shifted long wavelength absorption maximum (565 nm) when compared to that of polyfluorene (PF, 378 nm). In contrast to PF, its heteroaromatic analog PCPDT does not form thermotropic LC phases. The PF/PCPDT copolymers show clear indications for a block copolymer character (two separated π-π* absorption maxima, two glass transitions).
Macromolecular Rapid Communications published new progress about 111865-47-5. 111865-47-5 belongs to bromides-buliding-blocks, auxiliary class Benzenes, name is Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, and the molecular formula is C10H16Br3N, Application In Synthesis of 111865-47-5.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary