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Preparation and mechanical properties of crosslinked 1,2,3‐triazole‐polymers as potential propellant binders
Author(s) -
Wang Ling,
Song Yuming,
Gyanda Reena,
Sakhuja Rajeev,
Meher Nabin K.,
Hanci Sureyya,
Gyanda Kapil,
Mathai Sindhu,
Sabri Firouzeh,
Ciaramitaro David A.,
Bedford Clifford D.,
Katritzky Alan R.,
Duran Randolph S.
Publication year - 2010
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.30753
Subject(s) - propellant , polymer , materials science , polymer chemistry , elastomer , polyurethane , modulus , composite material , chemical engineering , chemistry , organic chemistry , engineering
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