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Journal of the Korea Institute of Military Science and Technology 2005;8(1):69-80.
Synthesis of azide-terminated glycidyl azide polymer with low molecular weight
Byoung-Sun Min
Agency for Defense Development
아지드기로 양말단 변성된 저분자량 Glycidyl Azide Polymer의 합성
민병선
국방과학연구소
Abstract
A synthesis of azide-terminated glycidyl azide polymer, GAP-A, was carried out by tosylation and azidation of polyepichlorohydrin(PECH) prepared by cationic ring-opening polymerization. Polyepichlorohydrin was prepared by cationic activated monomer polymerization using ethylene glycol and $BF_3{cdot}OEt_2$ as an initiator and a catalyst at $~10^{circ}C$. Tosylation of polyepichlorohydrin was performed using traditional TsCl/pyridine method and was also carried out using TsCl/amine catalysts to reduce the reaction time significantly. Azidation of tosyl-terminated PECH(OTs-PECH) was performed using $NaN_3$ as an azidation reagent in DMF solvent at high temperature and was unexpectedly completed within 2 hours.
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