Thermal decomposition of polymeric aminoborane (H2BNH2)x under hydrogen release

The thermal decomposition of polymeric aminoborane (H2BNH2)x is an exothermic process accompanied by evolution of nearly 1 mol hydrogen per mole H2BNH2 unit corresponding to the volumetric measurements. The detected mass loss of the solid phase indicates the formation of further gaseous products beside hydrogen. The final mass loss increases with rising heating rate, in contrast to the final amount of evolved hydrogen, which still remains constant.