SYNTHESIS OF ENERGETIC POLYESTER THERMOPLASTIC HOMOPOLYMERS AND ENERGETIC THERMOPLASTIC ELASTOMERS FORMED THEREFROM

摘要

Polymerization of .alpha.-bromomethyl-.alpha.-methyl-.beta.-propiolactone (BMMPL) or .alpha.- chloromethyl-.alpha.-methyl-.beta.-propiolactone (CMMPL) yielded thermoplast ic homopolymers that upon azidation led to a novel energetic thermoplastic polyester: poly(.alpha.-azidomethyl-.alpha.- methyl-.beta.-propiolactone) (PAMMPL). An energetic copolyether-ester thermoplastic elastomer was prepared by using glycidyl azide polymer, a dihydroxyl terminated energetic polymer, as a macroinitiator for the polymerization of BMMPL or CMMPL. The azidation of the resulting copolyether-ester yielded an energetic thermoplastic elastomer that melted at between 80.degree.C and 85.degree.C. Polymerization of .alpha.-dibromomethyl - .beta.-propiolactone (DBMPL) resulted in a polymer which upon azidation yielded a new energetic polymer that can be used as a binder or into an energetic thermoplastic elastomer synthesis.