Synthesis of novel heterocyclic polyimides containing trimellitimide acid moieties
โ Scribed by Shadpour E. Mallakpour; Abdol-Reza Hajipour; Rezvan Roohipour-Fard
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 226 KB
- Volume
- 79
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Two chalcone-derivative isomers, 4,4-diaminochalcone ( 4DAC ) and 3,3diaminochalcone ( 3DAC ), were synthesized and used as monomers together with tetracarboxylic dianhydrides to prepare novel photosensitive polyimides that contain a chalcone moiety in the main chain. The polyimides were characteriz
Tetrachlorophthalic anhydride (1) was reacted with L-leucine (2) in toluene solution at refluxing temperature in the presence of triethylamine and the resulting imide-acid (4) was obtained in quantitative yield. The compound (4) was converted to the N-(tetrachlorophthaloyl)-L-leucine acid chloride (
A series of germasesquioxides and germatranes containing โฃ-amino acid or โฃ-aminophosphonic acid moieties was synthesized by the reaction of b-trichlorogermylpropionyl chloride with โฃ-amino acid esters or โฃ-aminophosphonates. The structures of all products were confirmed by 1 H NMR, 31 P NMR, and IR