Born in Brașov, he studied at the local Romanian high school and then at the universities of Budapest and Vienna, earning an undergraduate degree in philosophy and a doctorate in law.
Popovici served as Interior Minister from 7 to 8 June 1930, in the cabinet of Gheorghe Mironescu that was charged by the regency acting on behalf of the minor King Michael with overseeing Carol's assumption of power.
[1] Popovici remained close to the king as the latter became increasingly authoritarian, and during the National Renaissance Front regime promised him the PNȚ would not stand in his way.
PNȚ leader Iuliu Maniu proposed Popovici as a minister in the subsequent government of Ion Antonescu, which the latter declined.
[3] In August 1947, in the wake of the Tămădău Affair and shortly before the establishment of a communist regime, he was arrested and incarcerated at Sighet prison.