The author of 《Photophysical and electroluminescence characteristics of polyfluorene derivatives with triphenylamine》 were Zhang, Qiang; Wang, Po-I.; Ong, Guang Liang; Tan, Shen Hoong; Tan, Zhong Wei; Hii, Yew Han; Wong, Yee Lin; Cheah, Khee Sang; Yap, Seong Ling; Ong, Teng Sian; Tou, Teck Yong; Nee, Chen Hon; Liaw, Der Jang; Yap, Seong Shan. And the article was published in Polymers (Basel, Switzerland) in 2019. Product Details of 589-87-7 The author mentioned the following in the article:
In this work, polymers of poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-triphenylamine] with side chains containing: pyrene (C1), di-Ph (C2), naphthalene (C3), and iso-Pr (C6) structures were synthesized via a Suzuki coupling reaction. The structures were verified using NMR and cyclic voltammetry measurements provide the HOMO and LUMO of the polymers. The polymer with pyrene (C1) and naphthalene (C3) produced photoluminescence in the green while the polymer with the side chain containing di-Ph (C2) and iso-Pr (C6) produce dual emission peaks of blue-green photoluminescence (PL). In order to examine the electroluminescence properties of the polymers, the solutions were spin-coated onto patterned ITO anode, dried, and subsequently coated with an Al cathode layer to form pristine single layer polymer LEDs. The results are compared to a standard PFO sample. The electroluminescence spectra resemble the PL spectra for C1 and C3. The devices of C2, C3, and C6 exhibit voltage-dependent EL. An addnl. red emission peak was detected for C2 and C6, resulting in spectra with peaks at 435 nm, 490 nm, and 625 nm. The effects of the side chains on the spectral characteristics of the polymer are discussed. The results came from multiple reactions, including the reaction of 1-Bromo-4-iodobenzene(cas: 589-87-7Product Details of 589-87-7)
1-Bromo-4-iodobenzene(cas: 589-87-7) is mainly used as the OLED pharmaceutical intermediate, as reagent for in situ desilylation and coupling of silylated alkynes, as substrate in copper-free Sonogashira coupling in aqueous acetone..Product Details of 589-87-7 It is also used in synthesis of β,β,dibromostyrenes, as starting reagent in the total syntheses of ent-conduramine A and ent-7-deoxypancratistatin (alkaloids)
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com