Synthesis and properties of aromatic ionenes
β Scribed by Gerd C. Hochberg; Rolf C. Schulz
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 560 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0959-8103
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Anhydride terminated polyamic acid prepolymer was prepared from pyromellitic dianhydride and a diamine (para-phenylene diamine/benzidine) in dimethyl formamide. The prepolymer was reacted with the other diamine to obtain (A,B),.,, block copolymic acid. The polyamic acid was converted to the polyimid
## Abstract Multinuclear aromatic compounds are distinguished by considerable thermostability. In a number of cases they have been shown to be endowed with semiconductor properties. In view of this the development of a method of synthesis and investigation of aromatic polymers with a common system