Kulkarni, Mahesh ; Kothawade, Sandeep ; Arabale, Girish ; Wagh, Deepali ; Vijayamohanan, K. ; Kulkarni, R. A. ; Vernekar, S. P. (2005) Synthesis and characterization of polyimides and co-polyimides having pendant benzoic acid moiety Polymer, 46 (11). pp. 3669-3676. ISSN 0032-3861
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.polymer.2005.03.001
Abstract
A novel diamine monomer, 2,4-diamino-4'-carboxy diphenyl ether had been synthesized. Several polyimides were prepared by reacting this diamine with commercially available dianhydrides, such as benzophenone tetracarboxylic acid dianhydride (BTDA), 4,4'-bis{hexafluoroisopropylidene bis (phthalic anhydride)}(6-FDA), oxydiphthalic anhydride (ODPA) and 3,3',4,4'-biphenyltetracarboxylic acid dianhydride (BPDA). Furthermore, copolymers from the resulting diamine and oxydianiline (ODA) with 6 FDA were also synthesized. The inherent viscosities of the polymers were 0.42-0.67 dl g−1. The polymers have good solubility in polar aprotic solvents, high thermal stability up to 410 °C in nitrogen and high glass transition temperatures (Tg) ranging from 260-330 ° C. These polymers formed tough flexible films by solution casting.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Polyimides with Pendant Benzoic Acid; Diamine with Pendant Benzoic Acid; Co-polyimides |
| ID Code: | 53296 |
| Deposited On: | 05 Aug 2011 11:19 |
| Last Modified: | 05 Aug 2011 11:19 |
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