Design of polyaromatic ethers using ...



Title Design of polyaromatic ethers using cyclopentadienyliron complexes.
Author(s) Alaa S. Abd-El-Aziz, Christine R. De Denus, Erin K. Todd, Shelly A. Bernardin
Journal Macromolecules,
Date 2000
Volume 33
Issue 14
Start page 5000
End page 5005
Abstract Nucleophilic aromatic substitution of cyclopentadienyliron complexes of chloroarenes with oxygen-containing nucleophiles led to the isolation of a number of aromatic ether complexes (2, 5a−e) in very good yields. Reactions of these complexes with 1-naphthol, followed by removal of the cyclopentadienyliron moieties produced aromatic ether compounds with terminal naphthoxy groups (3, 7a−e). Polymerization of these monomers in the presence of ferric chloride gave the poly(aryl ethers) 4 and 8a−e. These materials were obtained with weight-average molecular weights up to 139 900 g/mol. Thermogravimetric analysis of the poly(aryl ethers) showed that these materials displayed no significant weight loss until 458−575 °C. The glass transition temperatures for these polymers ranged from 147 to 226 °C, as measured by differential scanning calorimetry.
DOI 10.1021/ma000419+

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