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Masters Thesis
Homologue separation of a glycidyl azide polymer
Reverse phase liquid chromatography is used for the first time to separate a glycidyl azide polymer (GAP) into respective homologue fractions. UV-Vis spectra of the eluting components in these chromatograms have the same absorptions. These data indicate that the elution peaks are chemically related and probably differ only by extent of polymerization. Preliminary results indicate that the method provides a sensitive "finger print" of GAP samples which had been synthesized under varying conditions and exhibit different propellant characteristics. The method provides base line resolution of major homologue fractions. Molecular weights were determined by gel permeation chromatography and vapor pressure osmometry. Studies of the interactions of GAP with nitrate esters were also conducted but the data were not conclusive.
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