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- W2024193909 abstract "New catalyst systems for diyne polycyclotrimerization were developed. E-1-[2-(2,5-Diethynylphenyl)vinyl]ferrocene (1), a ferrocene-containing diyne, was polymerized by ruthenium- and rhodium-based catalysts, affording hyperbranched polyphenylenes (hb-P1) with high molecular weights (Mw up to ∼1.4 × 105) in high yields (up to 100%). Effects of reaction conditions on the polymerization process were investigated, and structures of the resultant polymers were characterized by spectroscopic methods. The polymers were soluble, thermally stable, and redox active. Complexation with cobalt carbonyls further metalized the polymers. Both the polymers and their cobalt complexes showed high refractive indices (RI up to ∼1.81) at 300−1700 nm, large Abbé numbers (νD′ up to ∼681), and low optical dispersions (D′ down to ∼0.0015) in the telecommunication wavelength region. Pyrolyses of the polymers and their complexes furnished magnetic ceramics with high magnetizabilities (Ms up to ∼83 emu/g)." @default.
- W2024193909 created "2016-06-24" @default.
- W2024193909 creator A5000922322 @default.
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- W2024193909 creator A5088557049 @default.
- W2024193909 creator A5089379373 @default.
- W2024193909 date "2009-12-30" @default.
- W2024193909 modified "2023-10-16" @default.
- W2024193909 title "Ferrocene-Functionalized Hyperbranched Polyphenylenes: Synthesis, Redox Activity, Light Refraction, Transition-Metal Complexation, and Precursors to Magnetic Ceramics" @default.
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