SYNTHESIS AND CHARACTERIZATION BY INFRARED SPECTROSCOPY OF HYDANTOIN-BASED BONDING AGENTS, USED IN COMPOSITE PROPELLANTS. doi: 10.5028/jatm.2009.0102177184

Authors

  • Darci C. Pires Institute of Aeronautics and Space São José dos Campos/ SP
  • Denise V. B. Stockler-Pinto Institute of Aeronautics and Space São José dos Campos/ SP
  • Jairo Sciamareli Institute of Aeronautics and Space São José dos Campos/ SP
  • Jorge Roberto da Costa Institute of Aeronautics and Space São José dos Campos/ SP
  • Milton Faria Diniz Institute of Aeronautics and Space São José dos Campos/ SP
  • Koshun Iha Institute of Aeronautics and Space São José dos Campos/ SP
  • Rita de Cássia L. Dutra Institute of Aeronautics and Space São José dos Campos/ SP

Keywords:

Hydantoin, Synthesis, Characterization, MIR, Composite propellant.

Abstract

Reactions to obtain hydantoin derivatives were carried out with 5,5-dimethylhydantoin and short-chain aldehydes. Monitoring of the reactions was performed using qualitative mid-infrared spectroscopy (MIR) through the formation of new bands characteristic of the desired product. MIR analysis showed that these spectrometric alterations occur only in the reaction with the formaldehyde, indicating the formation of the desired product, 1,3-bis (hydroxymethyl) 5,5-dimethylhydantoin, in the presence of water. The absorption bands that confirmed the reaction were observed at 3334 cmˉ¹ (Ʋ OH), 1770 and 1710 cmˉ¹ (Ʋ C=O) and 1056 cmˉ¹ (Ʋ C-O), the last of which is assigned to the group containing primary hydroxyl.

Downloads

Published

2011-07-26

Issue

Vol. 1 No. 2 (2009): Jul./Dec. 2009

Section

Original Papers

License

This work is licensed under a Creative Commons — Attribution 4.0 International — CC BY 4.0. Authors are free to Share (copy and redistribute the material in any medium or format) and Adapt (remix, transform, and build upon the material for any purpose, even commercially). JATM allow the authors to retain publishing rights without restrictions.