List of Articles Copolymers Open Access Article Abstract Page Full-Text 1 - Synthesis and Evaluation of Chitosan -Polyaniline Copolymer in Presence of Ammonium Persulfate as Initiator Sajjad Sedaghat Open Access Article Abstract Page Full-Text 2 - Effect of some additives on degradation of poly (vinyl chloride- co- vinyl Mohamamd Taghi Taghizadeh Abbas Agha Bozorgi