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Synthesis and characterization of new dyads containing different percentages of C 60 and PPV covalently linked
Author(s) -
Fang Hongjuan,
Wang Shu,
Xiao Shengxiong,
Li Yuliang,
Shi Zhiqiang,
Du Chimin,
Zhou Yunshen,
Zhu Daoben
Publication year - 2002
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/1521-3935(200209)203:13<1931::aid-macp1931>3.0.co;2-5
Subject(s) - copolymer , moiety , fullerene , polymer chemistry , absorption spectroscopy , cyclic voltammetry , materials science , photochemistry , electron transfer , chemistry , polymer , electrochemistry , stereochemistry , organic chemistry , electrode , optics , physics
A series of new poly(phenylenevinylene) (PPV) derivatives covelently linked with fullerenes (C 60 ) were synthesized and characterized. Copolymers containing different percentages of C 60 were obtained by controlling the percentage of azido groups in the initial feed ratio. The absorption spectra of copolymer (PPV‐C 60 ) showed two peaks in the regions of 410 and 330 nm. The former peak was interpreted as being the π–π* interband excitation of copolymer PPV followed by electron transfer to C 60 , while the latter was attributed to the optical excitation of the C 60 moiety. Cyclic voltammetry (CV) analysis showed the presence of interaction between the PPV unit and fullerene moiety in the ground state. Fluorescence spectra of the copolymers indicated charge transfer from the π* band of the photoexcited PPV of the copolymer to the C 60 .The UV‐vis spectra of the copolymers in CHCl 3 ( c = 1.0 × 10 −5 M ).