Aromatic Polyethers with a 4-Chloro-3-trifluoromethylphenyl Group

✍ Scribed by Baijun Liu; Wei Hu; Yuhui Jin; Chunhai Chen; Zhenhua Jiang; Zhongwen Wu; Toshihiko Matsumoto; Akiko Matsumura

• Book ID: 102482975
• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 126 KB
• Volume: 205
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.200400045

✦ Synopsis

Abstract

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.

magnified imagePart of the ^1^H NMR spectra of 3FC‐PAE.