Abstract
Various Azo, Bis-benzylidene and Pyranone based polymers were synthesized. Structurally, the polymers differ from each other by their alkyl chain moieties attached to their monomeric units. Structural characterization was made by NMR and IR, thermal stability was measured by thermo gravimetric analyzer (TGA) and glass transition temperature (Tg) was measured by differential scanning calorimetry (DSC). From analysis of the characterization data, it was found that the Bis-benzylidene pyranone polymers are thermally stable up to 250 oC. These polymers were soluble in high polar solvents. Bis-benzylidene and pyranone based polymers were found to be completely soluble in tetrahydrofuran (THF) whereas azo based polymers were partially soluble in THF.
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