02218nas a2200205   4500008004100000022001400041245010900055210006900164260007100233300001400304490000700318520141300325100002401738700002201762700002501784700002301809700002401832700003401856856012201890       2012                        eng d  a1083-616000aPreparation of spherical particles of 1,1-diamino-2,2-dinitroethene (FOX-7) using a micellar nanoreactor0 aPreparation of spherical particles of 11diamino22dinitroethene F  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcNOV  a1711-17160 v163 a<p>The need and preparation of spherical 1,1-diamino-2,2-dinitroethene (FOX-7) particles to meet certain special applications in high explosives and propellant formulation have been illustrated. Preparation of spherical FOX-7 particles by using a microemulsion technique has not been reported in the literature. In the present study, the preparation of spherical FOX-7 particles has been described using the novel concept of a micelle-based nanoreactor. Micelle-based nanoreactors have been prepared using a microemulsion of Triton X-100, cyclohexane, and water. Formation of spherical FOX-7 particles in the reverse micelle reactors have been described in the subsequent sections of this article. It is observed that spherical particles of FOX-7 are formed within 2 h in the microemulsion media. Analysis of the experimental results revealed that the particle size and shape of FOX-7 can be varied by changing the water/surfactant molar ratio in the microemulsion. Spherical particles synthesized by this method have diameters that are generally in the submicrometer to nanometer range. Impact sensitivity (h(50)) of the spherical particles obtained by the fall-hammer method is around 45 cm compared to regular synthesized FOX-7 (i.e., 50 +/- 5 cm) without any change in friction sensitivity, i.e. 36 kg. Loadability of the explosive charges can be enhanced by using these spherical particles of FOX-7.</p>1 aMandal, Alok, Kumar1 aThanigaivelan, U.1 aPandey, Raj, Kishore1 aAsthana, Srinandan1 aKhomane, Ramdas, B.1 aKulkarni, Bhaskar, Dattatraya  uhttps://library.ncl.res.in/content/preparation-spherical-particles-11-diamino-22-dinitroethene-fox-7-using-micellar-0