His main research area is physical chemistry of polymers and composites, magnetic resonance of free radicals and nano-sized systems.

Kovarski was born in Moscow on July 2, 1944, into a family of scientists which have made a significant contribution to Russian plastic science and technology.

Pevzner (1904–1988) was among the founders of the first Russian plastics center which devised and promoted to industry new materials that showed resistance to corrosion, oil, water, acids and alkalines.

In 1966, after graduation from the organic faculty of RChTU, Kovarski was admitted to the Institute of Chemical Physics, headed at that time by the Nobel Prize winner Nikolay Semyonov.

Since 2005 he heads the center for magnetic spectroscopy at the Emanuel Institute of Biochemical Physics of Russian Academy of Science (Moscow).