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Synthesis, Characterization and Thermal studies on natural Polymers modified with 2-(5-(4-dimethylamino-benzylidin)-4-oxo-2-thioxo-thiazolidin-3-yl) acetic acid

Author Affiliations

  • 1Research and Post Graduate Department of Chemistry, St. Thomas College, Pala-686574, Mahatma Gandhi University, Kerala, INDIA
  • 2Research and Post Graduate Department of Chemistry, St. George College, Aruvithura-686122, Mahatma Gandhi University, Kerala, INDIA

Res.J.chem.sci., Volume 2, Issue (12), Pages 37-45, December,18 (2012)

Abstract

In the present work, 2-(5-(4-dimethylamino-benzylidin)-4-oxo-2-thioxo-thiazolidin-3-yl)acetic acid, a chromophoric system with push-pull electron modulation was synthesized and incorporated onto biopolymers such as lignin, starch and cellulose through esterification by DCC Coupling. The products were characterized by UV-visible, fluorescence, FT-IR and NMR spectroscopic methods. The unmodified natural polymers and the coupled products were subjected to thermal analysis by TG-DTA studies. The results of the studies show that incorporation of the chromophoric system onto the polymeric core enhanced the thermal stability of the chromophoric system and core materials. The thermal data obtained were analysed and compared.

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