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Synthesis of soluble and thermally stable polyimides from 3,5-diamino-N-(4-(8-quinolinoxy) phenyl) aniline and various dianhydrides
Article first published online: 29 JUL 2010
DOI: 10.1002/app.32817
Copyright © 2010 Wiley Periodicals, Inc.
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How to Cite
Ghaemy, M. and Bazzar, M. (2011), Synthesis of soluble and thermally stable polyimides from 3,5-diamino-N-(4-(8-quinolinoxy) phenyl) aniline and various dianhydrides. J. Appl. Polym. Sci., 119: 983–988. doi: 10.1002/app.32817
Publication History
- Issue published online: 29 JUL 2010
- Article first published online: 29 JUL 2010
- Manuscript Accepted: 15 MAY 2010
- Manuscript Received: 12 OCT 2009
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Keywords:
- polyimides;
- polycondensation;
- synthesis;
- solubility;
- thermal properties
Abstract
Three novel polyimides (PIs) having pendent 4-(quinolin-8-yloxy) aniline group were prepared by polycondensation of a new diamine with commercially available tetracarboxylic dianhydrides, such as pyromellitic dianhydride, 3,3′,4,4′-benzophenone tetracarboxylic dianhydride, and bicyclo[2.2.2]-oct-7-ene-2,3,5,6-tetracarboxylic dianhydride. These PIs were characterized by FTIR, 1H NMR, and elemental analysis; they had high yields with inherent viscosities in the range of 0.4–0.5 dl g−1, and exhibited excellent solubility in many organic solvents such as N,N-dimethyl acetamide, N,N′-dimethyl formamide, N-methyl pyrrolidone (NMP), dimethyl sulfoxide, and pyridine. These PIs exhibited glass transition temperatures (Tg) between 250 and 325° C. Their initial decomposition temperatures (Ti) ranged between 270 and 450°C, and 10% weight loss temperature (T10) up to 500°C with 68% char yield at 600°C under nitrogen atmosphere. Transparent and hard polymer films were obtained via casting from their NMP solutions. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011