Abstract The synthesis of the nitrogen-rich glycidyl-5-(carboxyethyl-1H-tetrazole) polymer (4) by the reaction of glycidyl azide polymer (GAP) and ethyl cyanoformate (2) is described. Moreover, the polymer precursor 1, 2-bis (5-carboxyethyl-1H-tetrazolyl) ethane (3), containing two tetrazole moieties, was obtained by reacting compound 2 and 1, 2- diazidoethane (1). The substances were characterized by using vibrational spectroscopy ( ...