Synthesis and characterization of novel aromatic condensation polymers containing rigid benzoxazole pendent groups

✍ Scribed by Ji-Heung Kim; Yong Hwan Kim; Young Jun Kim; Jong Chan Won; Kil-Young Choi

• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 119 KB
• Volume: 92
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.13629

✦ Synopsis

Abstract

A new aromatic diamine monomer containing benzoxazole substituents was prepared by a multistep synthesis starting from 1,4‐dibromo‐2,5‐difluorobenzene. The diamine was polymerized with commercial aromatic dianhydride or dicarboxylic acid chloride monomers to provide several different poly(amic acid)s and polyamides with their inherent viscosities in the range of 0.24–0.46 dL/g. Thermal properties of these polymers including thermal imidization of poly(amic acid)s into polyimides were investigated by using FTIR, DSC, and TGA. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 92: 178–185, 2004