Synthesis, characterization, and gas permeability of aromatic polyimides containing pendant phenoxy group
โ Scribed by Sandeep S. Kothawade; Mahesh P. Kulkarni; Ulhas K. Kharul; Anandrao S. Patil; Subhash P. Vernekar
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 346 KB
- Volume
- 108
- Category
- Article
- ISSN
- 0021-8995
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New dianhydrides containing t-butyl and phenyl pendant groups have been synthesized and used as monomers, together with commercial diamines, to prepare novel polyimides. The influence of the chemical structure of the monomers on their reactivity has been studied by quantum semiempirical methods. The
Polyimides (PIs) based on 3,3ะ,4,4ะ-oxydiphthalic anhydride (ODPA) and 4,4ะ-oxydianiline (ODA) end capped with two new monoamines and other four different monoamines have been synthesized with a view to study the effect of different functional groups at the end of polymer chain on solubility, gas pe