Synthesis, characterization, degradation of biodegradable castor oil based polyesters

Sathiskumar, PS and Madras, Giridhar (2011) Synthesis, characterization, degradation of biodegradable castor oil based polyesters. In: Polymer Degradation and Stability, 96 (9). pp. 1695-1704.

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Abstract

A new family of castor oil based biodegradable polyesters was synthesized by catalyst free melt condensation reaction between two different diacids and castor oil with D-mannitol. The polymers synthesized were characterized by NMR spectroscopy, FF-IR and the thermal properties were analysed by DSC. The results of DSC show that the polymer is rubbery in physiological conditions. The contact angle measurement and hydration test results indicate that the surface of the polymer is hydrophilic. The mechanical properties, evaluated in the tensile mode, shows that the polymer has characteristics of a soft material. In vitro degradation of polymer in PBS solution carried out at physiological conditions indicates that the degradation goes to completion within 21 days and it was also found that the rate of degradation can be tuned by varying the curing conditions. (C) 2011 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	Polymer Degradation and Stability
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Castor oil;Aliphatic polyesters;Soft thermoset;Biodegradable polymer
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	16 Sep 2011 07:02
Last Modified:	16 Sep 2011 07:02
URI:	http://eprints.iisc.ac.in/id/eprint/40434

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