Ferrocene-functionalized hyperbranched polyphenylenes: Synthesis, redox activity, light refraction, transition-metal complexation, and precursors to magnetic ceramics

Jianbing Shi; Cathy J.W. Jim; Faisal Mahtab; Jianzhao Liu; Jacky W.Y. Lam; Herman H.Y. Sung; Ian D. Williams; Yuping Dong; Ben Zhong Tang

doi:10.1021/ma9012658

Ferrocene-functionalized hyperbranched polyphenylenes: Synthesis, redox activity, light refraction, transition-metal complexation, and precursors to magnetic ceramics

Jianbing Shi, Cathy J.W. Jim, Faisal Mahtab, Jianzhao Liu, Jacky W.Y. Lam, Herman H.Y. Sung, Ian D. Williams, Yuping Dong^*, Ben Zhong Tang

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

61 Citations (Scopus)

Abstract

New catalyst systems for diyne polycyclotrimerization were developed, E-l-[2-(2,5-Diethynylphenyl)vinyl]ferrocene (1), a ferrocene-containing diyne, was polymerized by ruthenium- and rhodiumbased catalysts, affording hyperbranched polyphenylenes (hb-P1) with high molecular weights (M_w up to ∼1.4 x 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 (v_D' 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 (M_s up to ∼83 emu/g).

Original language	English
Pages (from-to)	680-690
Number of pages	11
Journal	Macromolecules
Volume	43
Issue number	2
DOIs	https://doi.org/10.1021/ma9012658
Publication status	Published - 26 Jan 2010

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@article{bf4980d99000463eba6fcaafa44edf4f,

title = "Ferrocene-functionalized hyperbranched polyphenylenes: Synthesis, redox activity, light refraction, transition-metal complexation, and precursors to magnetic ceramics",

abstract = "New catalyst systems for diyne polycyclotrimerization were developed, E-l-[2-(2,5-Diethynylphenyl)vinyl]ferrocene (1), a ferrocene-containing diyne, was polymerized by ruthenium- and rhodiumbased catalysts, affording hyperbranched polyphenylenes (hb-P1) with high molecular weights (Mw up to ∼1.4 x 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 Abb{\'e} numbers (vD' 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).",

author = "Jianbing Shi and Jim, {Cathy J.W.} and Faisal Mahtab and Jianzhao Liu and Lam, {Jacky W.Y.} and Sung, {Herman H.Y.} and Williams, {Ian D.} and Yuping Dong and Tang, {Ben Zhong}",

year = "2010",

month = jan,

day = "26",

doi = "10.1021/ma9012658",

language = "English",

volume = "43",

pages = "680--690",

journal = "Macromolecules",

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T1 - Ferrocene-functionalized hyperbranched polyphenylenes

T2 - Synthesis, redox activity, light refraction, transition-metal complexation, and precursors to magnetic ceramics

AU - Shi, Jianbing

AU - Jim, Cathy J.W.

AU - Mahtab, Faisal

AU - Liu, Jianzhao

AU - Lam, Jacky W.Y.

AU - Sung, Herman H.Y.

AU - Williams, Ian D.

AU - Dong, Yuping

AU - Tang, Ben Zhong

PY - 2010/1/26

Y1 - 2010/1/26

N2 - New catalyst systems for diyne polycyclotrimerization were developed, E-l-[2-(2,5-Diethynylphenyl)vinyl]ferrocene (1), a ferrocene-containing diyne, was polymerized by ruthenium- and rhodiumbased catalysts, affording hyperbranched polyphenylenes (hb-P1) with high molecular weights (Mw up to ∼1.4 x 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 (vD' 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).

AB - New catalyst systems for diyne polycyclotrimerization were developed, E-l-[2-(2,5-Diethynylphenyl)vinyl]ferrocene (1), a ferrocene-containing diyne, was polymerized by ruthenium- and rhodiumbased catalysts, affording hyperbranched polyphenylenes (hb-P1) with high molecular weights (Mw up to ∼1.4 x 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 (vD' 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).

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SN - 0024-9297

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JO - Macromolecules

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Ferrocene-functionalized hyperbranched polyphenylenes: Synthesis, redox activity, light refraction, transition-metal complexation, and precursors to magnetic ceramics

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