List of Articles Open Access Article Abstract Page Full-Text 1 - Investigation and possibility of reduction of styrene monomer in polystyrene produced with GPPS and HIPS grades in the operating unit فهیمه درخشانفر Open Access Article Abstract Page Full-Text 2 - Preparation and characterization of co hydrogel (Vinyl Pyrrolidone- Methacrylic acid) by free radical polymerization method amir sepehrian azar afsaneh mohammadpour hamed elmi Open Access Article Abstract Page Full-Text 3 - Study of essential oil components of Malva sylvestris juice collected from Meshkinshahr and its anti-bacterial property compared to chlorhexidine on common bacteria of oral infection Nima Mohammad Nejad Khiavi Hojjat Eghbal Neda Jahani Marzie Mehrzade Open Access Article Abstract Page Full-Text 4 - Study of electrochemical and anti-oxidant Behavior of Thymol by computational methods Zahra Javanshir Leili Rahimi Open Access Article Abstract Page Full-Text 5 - A review on the synthesis of silica nanoparticles and their applications in environmental remediation Mehrab Fallahi-Samberan Samaneh Khodadadi Open Access Article Abstract Page Full-Text 6 - Investigation of production of aluminum polychloride sulfate, its application in water treatment and its comparison with other coagulants