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Synthesis, characterization, and photophysical properties of novel poly( p ‐phenylene vinylene) derivatives with conjugated thiophene as side chains
Author(s) -
Ding Tianpeng,
Zhao Bin,
Shen Ping,
Lu Junjian,
Li Hui,
Tan Songting
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.33294
Subject(s) - thiophene , side chain , conjugated system , phenylene , cyclic voltammetry , materials science , polymer chemistry , thermal stability , polymer , wittig reaction , absorption spectroscopy , fourier transform infrared spectroscopy , photochemistry , chemistry , organic chemistry , electrochemistry , chemical engineering , physics , electrode , quantum mechanics , engineering , composite material
Abstract Two novel poly( p ‐phenylene vinylene) (PPV) derivatives with conjugated thiophene side chains, P1 and P2, were synthesized by Wittig‐Horner reaction. The resulting polymers were characterized by 1 H‐NMR, FTIR, GPC, DSC, TGA, UV–Vis absorption spectroscopy and cyclic voltammetry (CV). The polymers exhibited good thermal stability and film‐forming ability. The absorption spectra of P1 and P2 showed broader absorption band from 300 to 580 nm compared with poly[( p ‐phenylene vinylene)‐alt‐(2‐methoxy‐5‐octyloxy‐ p ‐phenylene vinylene)] (P3) without conjugated thiophene side chains. Cyclic voltammograms displayed that the bandgap was reduced effectively by attaching conjugated thiophene side chains. This kind of polymer appears to be interesting candidates for solar‐cell applications. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011