List of Articles Open Access Article Abstract Page Full-Text 1 - Effects of graphene on the curing characteristic, morphology, rheology and mechanical properties of natural rubber (NR), chlorobutyl rubber (CIIR) and NR/CIIR blend Marziye Sharifi-Teshnizi َAzam Jalali-Arani Marianella Hernández Santana Open Access Article Abstract Page Full-Text 2 - Microextraction and measurement of cholecalciferol (vitamin D3) in biofibers by a three-phase method using hollow fiber and two immiscible organic solvents MARYAM RAZIEE Open Access Article Abstract Page Full-Text 3 - Investigation of the effect of using titanium dioxide polymer nanocompounds on the packaging characteristics of polyethylene terephthalate beverage containers Majid Khani Mehdi Pordel Abolghasem Davoodnia Afshin Tavasoli Farsheh