Evaluation of Thermal Properties and Spectroscopic Studies of Chitosan Bio Composites

Authors

  • R. Priscilla, A. Deepika, R. Ida Malarselvi, C. Ramachandra Raja

Abstract

Schiff bases from chitosan and 5-methyl salicylaldehyde with aniline, 5-nitro salicylaldehyde with aniline composite and represented the important structural subject in the excess of biologically active molecules including synthetic. The introduction of 5-nitro salicylaldehyde and 5-methylsalicylaldehyde at C-2 nitrogen position and aniline at C-6 oxygen position of chitosan. The structure-activity relationship (SAR) of the modified chitosan, synthesized from the poly condensation reaction of equimolar amounts of 5-methylsalicylaldehyde, 5-Nitrosalicylaldehyde, chitosan, and aniline in DMSO. The impact assessment of chitosan on the chemical structure, physical properties (FT-IR, 1H-NMR, 13C-NMR, and GC-Mass spectroscopy), thermal properties, degradability, and biological activity of chitosan 5-methylsalicylaldehyde, 5-nitrosalicylaldehyde with aniline composites (without other additives) is discussed in this article. This work shows that DSC-FT-IR is an alternative identification technique on the effect of the exothermal polymerization reaction of polymer. DSC was used to detect the glass transition, multiple melting endotherms, and recrystallization of the polymer as it was heated and cooled. FT-IR was used to monitor structural changes in the sample as it went through these thermal transitions. The derivatives have remarkable pharmaceutical activities as an anti-fungal, anti-cancer, anti-bacterial and anti-oxidant compound.

Keywords-FT-IR Spectroscopy, NMR Spectroscopy, Thermal analysis, and Activation energy component; formatting; style; styling; insert

Published

2020-12-28

Issue

Section

Articles