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Rendering non-energetic microporous coordination polymers explosive.

Kyle A McDonald1, Jonathan C Bennion, Amanda K Leone

  • 1Department of Chemistry, University of Michigan, 930 N. University Ave, Ann Arbor, MI 48109, USA. matzger@umich.edu.

Chemical Communications (Cambridge, England)
|August 16, 2016
PubMed
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Researchers created sensitive primary explosives by adsorbing oxidizing molecules into a coordination polymer. These novel explosives offer improved oxygen balance and heat release, potentially replacing lead-based initiators.

Area of Science:

  • Materials Science
  • Chemistry
  • Energetic Materials

Background:

  • Traditional primary explosives often contain heavy metals like lead, posing environmental and health concerns.
  • Developing sensitive, high-performance energetic materials with reduced toxicity is a key research area.

Purpose of the Study:

  • To synthesize novel primary explosives using a non-energetic microporous coordination polymer.
  • To investigate the properties of these new explosives, including oxygen balance, decomposition heat, and vapor pressure.
  • To assess their potential as replacements for lead-based initiators.

Main Methods:

  • Adsorption of oxidizing guest molecules into a non-energetic microporous coordination polymer framework.
  • Characterization of the resulting energetic materials to determine their oxygen balance, thermal decomposition behavior, and vapor pressure.

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Main Results:

  • The synthesized materials function as primary explosives, exhibiting high sensitivity to impact.
  • The explosives demonstrate desirable oxygen balance and high heat release upon decomposition.
  • The vapor pressure of the guest molecules within the polymer matrix is significantly suppressed.

Conclusions:

  • A new class of primary explosives has been successfully synthesized.
  • These coordination polymer-based explosives show promising properties for replacing lead-based initiators.
  • The suppressed vapor pressure offers potential safety advantages during handling and storage.