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Aromatic Polyethers with a 4‐Chloro‐3‐trifluoromethylphenyl Group
Author(s) -
Liu Baijun,
Hu Wei,
Jin Yuhui,
Chen Chunhai,
Jiang Zhenhua,
Wu Zhongwen,
Matsumoto Toshihiko,
Matsumura Akiko
Publication year - 2004
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200400045
Subject(s) - thermal stability , bisphenol , chemistry , condensation polymer , nucleophilic aromatic substitution , polymer , polymer chemistry , solubility , bisphenol a , nucleophilic substitution , proton nmr , trifluoromethyl , glass transition , organic chemistry , alkyl , epoxy
Summary: A novel bisphenol, (4‐chloro‐3‐trifluoromethyl)phenylhydroquinone (3FC‐PH), was synthesized via a three‐step synthetic procedure. Four aromatic polyethers based on 3FC‐PH were prepared via a nucleophilic aromatic substitution polycondensation. These polymers had a high thermal stability, and the temperatures at a 5% weight loss were above 516 °C in air. The solubility of the polyethers was improved by the introduction of bulky pendant groups. The average refractive indices of the polymer films at 1 320 nm were in the range 1.5381–1.6145. The dielectric constants of the polyether films estimated from the refractive indices were 2.69–2.98. Highly fluorinated 3FC‐PAE exhibited lower light absorption in the near‐IR region.Part of the 1 H NMR spectra of 3FC‐PAE.