Natural-rubber-based chiral polyesters as acoustic damping materials: synthesis and characterization

V. G. Jayakumari; J. Narayana Das

doi:10.1117/12.305569

16 April 1998 Natural-rubber-based chiral polyesters as acoustic damping materials: synthesis and characterization

V. G. Jayakumari, J. Narayana Das

Proceedings Volume 3321, 1996 Symposium on Smart Materials, Structures, and MEMS; (1998) https://doi.org/10.1117/12.305569
Event: Smart Materials, Structures and MEMS, 1996, Bangalore, India

Abstract

Development of new viscoelastic materials were attempted. New damping materials were developed starting from hydroxyl terminated liquid natural rubber prepared by photodepolymerization of coagulated natural rubber latex by reacting with 1,4:3,6-dianhydro D-Sorbitol (isosorbide) and terephthaloyl chloride/(bis-2-Chloroformyl, 4-nitrophenyl) terephthalamide. The copolyesters were characterized by spectral and thermal techniques. Inherent viscosity and optical activities were measured. The damping performance as studied using DMA technique, was found to be superior compared to starting natural rubber.

Citation Download Citation

V. G. Jayakumari and J. Narayana Das "Natural-rubber-based chiral polyesters as acoustic damping materials: synthesis and characterization", Proc. SPIE 3321, 1996 Symposium on Smart Materials, Structures, and MEMS, (16 April 1998); https://doi.org/10.1117/12.305569

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