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http://nopr.niscpr.res.in/handle/123456789/22952| Title: | Synthesis and characterization of new polycrown ether (schiff base) |
| Authors: | Dutta, Pradip Kumar |
| Issue Date: | Nov-2001 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | A semirigid 32-membered ring dialdehyde crown ether, bis (5-aldoxy-1, 3-phenylene)-32-crown-10 (3), has beensynthesized in one step using 3,5-dihydroxy benzaldehyde (1) and tetra (ethylene glycol) dichloride (2) in the presence of sodium hydride in DMF. A direct polycondensation reaction of bis (5-aldoxy-1 ,3-phenylene)-32-crown-10(3) and diamines (5) in DMF formed a high molecular weight poly crown ether (schiff base). The polymers are characterized by viscometry, elemental analysis, IR and NMR spectroscopies. The polymers are soluble in common organic solvents. The thermal characteristics of the polymers have been studied by TGA and DTA. |
| Page(s): | 515-517 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Appears in Collections: | IJCT Vol.08(6) [November 2001] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCT 8(6) 515-517.pdf | 613.47 kB | Adobe PDF | View/Open |
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