The polymerization of ortho-、 meta- and para-phenylenediamine was investigated using ammonium persulfate and acetic acid as catalyst
The conductivity
magnetic property and thermal stability of the polymers were studied . The conductivity of the doped polymers is more than 10-9 Scm-1 and displays semiconductivity. The rusult of TG analysis indicates that these polymers possess same stability and the stability of the polymers is infected by the catalyst for the polymerization