title: Synthesis and properties of poly(p-phenylene vinylene) derivatives with hyperbranched structure and containing a nitro substituent.
abstract: In order to improve efficiency, processability, and stability, two groups of novel poly(p-phenylene vinylene) (PPV) derivatives (P1-P3and P4-P6) with hyperbranched structure and containing a nitro substituent were synthesized via a Gilch reaction in different monomer ratios. The properties of the polymers were investigated by using UV-Vis absorption, fluorescence spectroscopy, cyclic voltammetry, and thermogravimetric analysis. The result shows that the band gaps of the PPV derivatives with a nitro substituent were decreased and the polymers had higher molecular weights (106), excellent solubility in common organic solvents, good film-forming ability, and better thermal stability. The polymers can be used as an efficient acceptor material in polymeric solar cells.
authors.affiliation: College of Chemistry, Central China Normal University (CCNU), Wuhan, 430079 Hubei China.
authors.forename: Ruyu
authors.initials: R
authors.lastname: Li
authors.affiliation: College of Chemistry, Central China Normal University (CCNU), Wuhan, 430079 Hubei China.
authors.forename: Yanjiao
authors.initials: Y
authors.lastname: Mo
authors.affiliation: College of Chemistry, Central China Normal University (CCNU), Wuhan, 430079 Hubei China.
authors.forename: Rong
authors.initials: R
authors.lastname: Shi
authors.affiliation: College of Chemistry, Central China Normal University (CCNU), Wuhan, 430079 Hubei China.
authors.forename: Peng
authors.initials: P
authors.lastname: Li
authors.affiliation: College of Chemistry, Central China Normal University (CCNU), Wuhan, 430079 Hubei China.
authors.forename: Chengyu
authors.initials: C
authors.lastname: Li
authors.affiliation: College of Chemistry, Central China Normal University (CCNU), Wuhan, 430079 Hubei China.
authors.forename: Zhenjiang
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Raffles Institution, 1 Raffles Institution Lane, Singapore, 575954 Singapore.
authors.forename: Xun
authors.initials: X
authors.lastname: Wang
authors.affiliation: College of Chemistry, Central China Normal University (CCNU), Wuhan, 430079 Hubei China.
authors.forename: Shengbiao
authors.initials: S
authors.lastname: Li
keywords: Hyperbranched; Nitro substituent; Poly(p-phenylene vinylene) derivatives; Properties; Synthesis