List of Articles Vinyl pyrrolidone Open Access Article Abstract Page Full-Text 1 - Investigation of Thermal Behavior of Inter Penetrating Polymer Network (I.P.N) between N-vinyl Pirrolydon-Vinyl Sulfonic acid Hydrogels Amir Sepehrianazar Anahita Noie Open Access Article Abstract Page Full-Text 2 - Preparation of Poly (Vinylpyrrolidone-Co-Allylamine Hydrochloride) Cohydrogel and Investigation of Adsorption of Nanonitrophenol Derivatives from Contaminated Water Afsaneh Mohammadpour Amir Sepehrian Azar Mohsen Fami Open Access Article Abstract Page Full-Text 3 - Sonophotocatalytic degradation of poly (vinyl pyrrolidone) (PVP) in the presence of TiO2 nanoparticles Naser Sadeghpour Orang Reza Abdollahi