Biodegradable Melt processable liquid crystalline polyesters

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Presentation transcript:

Biodegradable Melt processable liquid crystalline polyesters FTIR: ester CO stretching at 1730 cm-1; 13C NMR: the CO diad frequency between 160-180 ppm showing three unequivalent absorptions indicating the formation of block terpolymer. J. Polym. Sci.; Polym. Chem. 40, 11, 2002,1845; J. Polym. Sci.; Polym. Chem. Ed. 39, 5, 2001, 693-705; J. Macromol. Sci. Pure. Appl. Chem. 38, 2001, 641 Schlieren nematic texture Weight loss on degradation in a lipase buffer solution at 30°C, (1) Pocine pancreas lipase/buffer (2) Candida rugosa lipase/buffer Brabender curves SEM of the degraded polymers V.S.Prasad, C.K.S.Pillai and M. Rvindranathan, US Patent No. 6409937, 2002; Ger. Offen. DE 10,015,840, 2001, US Patent 6,409,937 June 25, 2002.