Yousif's research covers the inorganic, photochemistry, synthesis,structure, processing and properties of polymers,and oleo-chemistry. In particular, he is interested in the antibacterial, optical and lubricant properties of such polymers. His work commitment,however, has not prevented him from tutoring seven students, who have graduated under his supervision. Yousif has published many scientific articles in national and international journals, and has also published 15 books, which reflect his interest in public engagement in science. In addition, based on his international publications, he has recently been honoured by the Government of Iraq with the prestigious 2010, 2011, 2012,2013 and 2014 Science Day Prize.