Synthesis and characterization glycidyl azide polymer of an attractive binder for energetic materials

• Main Authors: Nešić Jovica, Marinković Aleksandar, Bajić Zoran, Brzić Saša
• Format: Article
• Language: English
• Published: Military Technical Institute, Belgrade 2018-01-01
• Series: Scientific Technical Review
• Subjects: polymers; polymer binder; glycidyl azide polymer; energetic polymers; chemical synthesis; material properties; physico-chemical performances
• Online Access: https://scindeks-clanci.ceon.rs/data/pdf/1820-0206/2018/1820-02061802026N.pdf

The glycidyl azide polymer (GAP), known as an energetic, thermally stable, low sensitive, hydroxyl-terminated prepolymer, was synthesized using different diol and triol initiator units. GAP was prepared by azidation of poly(epichlorohydrin) (PECH) with different polyol units in the polymer chain. PECH was obtained by cationic ring-opening polymerization of epichlorohydrin, with BF3-etherate as a catalyst and polyol as a co-catalyst. The synthesized polymers have been characterized using IR-spectroscopy, while the prepolymers structure was confirmed by proton NMR spectroscopy. Additionally, glass transition temperature (Tg) and sensitivity to thermal stimuli were determined. Physico-chemical and rheological performances were carried out towards: end groups analysis, as well as density and molecular mass determination.