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Reaction between azide molecule with hydroxyl terminated polybutadiene

: Ferrapontoff Lemos, Mauricio; Dörich, Manuela; Keicher, Thomas; Bohn, Manfred A.; Mendes, C.

Fulltext urn:nbn:de:0011-n-4973321 (568 KByte PDF)
MD5 Fingerprint: 2eabeb96e9e18788c5291ea1c5907838
Created on: 26.6.2018

Fraunhofer-Institut für Chemische Technologie -ICT-, Pfinztal:
Energetic Materials. Synthesis, Processing, Performance : 49th International Annual Conference of ICT, June 26 - 29, 2018, Karlsruhe
Pfinztal: Fraunhofer ICT, 2018
Fraunhofer-Institut für Chemische Technologie (International Annual Conference) <49, 2018, Karlsruhe>
Conference Paper, Electronic Publication
Fraunhofer ICT ()

In previous work the compatibility between azide molecules and HTPB was discussed in terms of Gel Permeation Chromatography (GPC) and continuously recording Vacuum Stability Test (VST) results. Thus, the aim of this work is to evaluate the reaction between hydroxyl terminated polybutadiene (HTPB) and the energetic plasticizer ethylene glycol bis-(azidoacetate) (EGBAA). The mixture of HTPB with EGBAA was monitored by size exclusion chromatography (SEC) and the final product characterized by Attenuated total reflected Fourier transformed infrared spectroscopy (ATR/FT-IR). Strong increase in relative molar mass and the decreasing concentration of EGBAA in the eluted volume of the mixture showed that HTPB and EGBAA reacted to form branches in HTPB backbone. ATR/FT-IR spectrum indicates the formation of new Carbon-Nitrogen bonds assuming from the reaction between azide groups and double bonds of the HTPB.