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Polímeros

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Abstract

RIBEIRO, Sandro P.; SANTIAGO, David G.  and  VIANNA JR., Ardson dos S.. Glycidyl azide polymer (GAP). I: syntheses and characterization. Polímeros [online]. 2012, vol.22, n.5, pp. 407-413.  Epub Aug 07, 2012. ISSN 0104-1428.  http://dx.doi.org/10.1590/S0104-14282012005000045.

GAP is an aliphatic polyether that includes hydroxyl groups and highly energetic azide groups. Thus, it is an energetic material that can be used as binder or plasticizing agent in propellants and explosive mixtures. The glycidyl azide polymer (GAP) was synthesized and characterized by direct conversion of epichlorohydrin. GAP was synthesized by reaction of sodium azide, epichlorohydrin, and some extensor alcohols. The investigation focused on the effects of some key reaction parameters including reagent proportions, reaction time and two different solvents. The product was characterized by FTIR, UV, NMR, DSC, elemental analysis, TGA and GPC. The species were also evaluated through molecular weight (GPC), glass transition temperature (DSC), ignition time and sensitivity.

Keywords : Syntheses; GAP characterization; energetic compound.

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