Polyglycidyl azides comprising an acyloxy terminal group and an azide terminal group
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United States of America Patent
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Nov 27, 2001
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N/A
app pub date -
Sep 25, 2000
filing date -
Oct 15, 1999
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Abstract
A subject-matter of the present invention is novel polyglycidyl azides of general formula (I): ##STR1## in which: R.sub.1 represents an alkylene chain comprising 2 to 4 carbon atoms, R.sub.2 represents an alkyl chain comprising 1 to 4 carbon atoms, x represents an integer such that 4.ltoreq.x.ltoreq.10. These compounds are not detonatable and are of use in particular as energetic plasticizers in solid pyrotechnic compositions. They can be obtained according to a 3-stage process starting from epichlorohydrin by preliminary synthesis of polyepichlorohydrin with a hydroxyl terminal group of formula (II): ##STR2## then acylation of this compound in order to obtain a polyepichlorohydrin with an acyloxy terminal group of formula (IV): ##STR3## and then azidation of this compound.
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