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- W2078346677 abstract "Poly(2,5-diheptyl-1,4-phenylenevinylene) (1) was prepared by the sulfonium salt pyrolysis procedure. Tough films of 1 were obtained by pyrolysis of its sulfonium salt precursor film. Due to flexible side chains, 1 was soluble in organic solvents such as chloroform. The molecular weights were Mn = 3.8−4.7 × 104 and Mw = 1.4−1.8 × 105. The ratio of trans to cis olefinic units was found to be 93 : 7 from the 1H NMR spectrum. Two arylmethylene peaks suggested that there were two kinds of stereochemically different methylene groups. Although the peak energy in the absorption spectra was almost identical to those of poly(1,4-phenylenevinylene) (PPV), the electrical conductivity of 1 was much lower than that of PPV." @default.
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- W2078346677 date "1992-03-01" @default.
- W2078346677 modified "2023-09-23" @default.
- W2078346677 title "Preparation of Poly(2,5-diheptyl-1,4-phenylenevinylene) by Sulfonium Salt Pyrolysis" @default.
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- W2078346677 doi "https://doi.org/10.1246/bcsj.65.853" @default.
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