Journal BS. Synthesis and Characterization of Some New Monemer and Polymers Containing Hetero Cyclic Rings With Study of Their Physical Properties. BSJ [انترنت]. 52016 [وثق 212019];13(2.2NCC):0172. Available from: http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2763