Convenient Synthesis and Characterization of Pyrazolones and Schiff Bases
β Scribed by Girisha, K. S.; Kalluraya, Balakrishna
- Book ID
- 115511411
- Publisher
- Taylor and Francis Group
- Year
- 2012
- Tongue
- English
- Weight
- 174 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0039-7911
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Six new poly-Schiff bases have been synthesized by solution polycondensation of six different diamines with 4,4'-aryl bis-(oxy)-bis acetophenone. The synthesized polymers were characterized by viscosity measurement, elemental analyses, i.r., X-ray diffraction, and differential scanning calorimetry.
Ten new polyesterazomethines have been synthesized by solution polycondensation of five different diamines with 4,4'-[terephthaloyloxy]bis-3-ethoxybenzaldehyde and 4,4'-[isophthaloyloxy]bis-3-ethoxybenzaldehyde using dimethylacetamide in the presence of anhydrous LiCL. Fibrous polymers were precipit