Preparation and mechanical properties of crosslinked 1,2,3‐triazole‐polymers as potential propellant binders |
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| Authors: | Ling Wang Yuming Song Reena Gyanda Rajeev Sakhuja Nabin K. Meher Sureyya Hanci Kapil Gyanda Sindhu Mathai Firouzeh Sabri David A. Ciaramitaro Clifford D. Bedford Alan R. Katritzky Randolph S. Duran |
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| Affiliation: | 1. Department of Chemistry, Polymer Research Laboratory, University of Florida, Gainesville, Florida 32611‐7200;2. Department of Chemistry, Center for Heterocyclic Compounds, University of Florida, Gainesville, Florida 32611‐7200;3. Office of Naval Research, Arlington, Virginia 22203 |
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| Abstract: | Thirteen triazole polymers were prepared as potential rocket propellant binders by the reactions of various diacetylenes and diazides. The reaction of E300 dipropiolate ( 1 ) with diazide ( 2 ) obtained from tetraethylene glycol was selected to study the effects of concentration of the tetraacetylene functionalized crosslinker ( 3 ) on the mechanical properties of resulting triazole polymers. The modulus of the polymers increased, whereas the strain (% elongation at failure) decreased with increasing percentage of crosslinker. The resulting triazole polymers also showed that the desired mechanical properties could be obtained by adjusting the crosslinker concentration during the polymerization. Addition of 43 wt % aluminum filler did not significantly affect the strain. The modulus of these triazole polymers was comparable with typical polyurethane elastomeric matrices for rocket propellants. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010 |
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| Keywords: | strain mechanical properties modulus crosslinking fillers |
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