Editor-in-Chiefʹʹs notes

The current edition of Polyolefins Journal (POJ) you have in your hands is the special edition dedicated to a selected collection of articles prepared from lectures presented in the polyolefin session of the 11th International Seminar on Polymer Science and Technology (ISPST2014) that took place in Tehran, Iran last October. The ISPST is a biennial event organized by different Iranian universities and research institutions since 1986. The conferenceʹs aim has been to bring national and international front liner, academicians, and business executives, to present and discuss the latest achievements in polymer science and technology. At the initiative of colleagues from Iran Polymer and Petrochemical Institute, IPPI, the host of the ISPST 2014 conference, for the first time, an entire session was devoted to a wide range of topics concerning the polyolefin research and development.