Synthesis and Properties of Poly(1,1-diisopropyl-3,4-diphenyl-2,5-silole)
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Grignard metathesis (GRIM) polymerization of 1,1-diisopropyl-2,5-dibromo-3,4-diphenylsilole (3) was carried out to afford poly(1,1-diisopropyl-3,4-diphenyl-2,5-silole) (4) containing fluorescent aromatic chromophore groups such as phenyl and silole in the polymer main chain. The prepared material is soluble in common organic solvents such as CHCl3 and THF. FTIR spectrum of the polymer exhibits the characteristic C=C stretching frequency at 1622 cm-1. In the THF solution, the prepared polymeric material shows strong maximum absorption peaks at 240 and 273 nm, a strong maximum excitation peak at 276 nm, and strong maximum fluorescence emission bands at 440 nm. TGA thermogram indicates that the polymer is stable up to 200C with a weight loss of about 10% in nitrogen.
Abstract
Grignard metathesis (GRIM) polymerization of 1,1-diisopropyl-2,5-dibromo-3,4-diphenylsilole (3) was carried out to afford poly(1,1-diisopropyl-3,4-diphenyl-2,5-silole) (4) containing fluorescent aromatic chromophore groups such as phenyl and silole in the polymer main chain. The prepared material is soluble in common organic solvents such as CHCl3 and THF. FTIR spectrum of the polymer exhibits the characteristic C=C stretching frequency at 1622 cm-1. In the THF solution, the prepared polymeric material shows strong maximum absorption peaks at 240 and 273 nm, a strong maximum excitation peak at 276 nm, and strong maximum fluorescence emission bands at 440 nm. TGA thermogram indicates that the polymer is stable up to 200C with a weight loss of about 10% in nitrogen.
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