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388 research outcomes, page 1 of 39
  • publication . Article . 2012
    Open Access Persian
    Authors:
    Leila Sadat Ahmadi; Ahmad Reza Bahramian; Mehrdad Kokabi;
    Publisher: Iran Polymer and Petrochemical Institute

    Phase change materials (PCM) are substances with a high heat of fusion which, through melting and solidifying at certain temperatures, are capable to store or release a large amount of energy. This phenomenon can be utilized in designing heat protective materials as wel...

  • publication . Article . 2017
    Open Access Persian
    Authors:
    Sanazgoli Javanbakht Ghahfarokhi; Alireza Shakeri; Amir Zalnezhad;
    Publisher: Iran Polymer and Petrochemical Institute

    Because of wide applications of poly(ethylene oxide) (PEO) in various areas such as chemical, electrical and pharmaceutical industries, researchers have been focused to develop and improve the properties of this interesting polymer. To improve the mechanical and thermal...

  • publication . Article . 2017
    Open Access Persian
    Authors:
    Mohammad Reza Manafi; Pedram Manafi; Gholamreza Pircheraghi;
    Publisher: Iran Polymer and Petrochemical Institute

    Carbon nanotubes (CNTs) are a new class of nanomaterials that have gained special attention due to their unique properties such as excellent electrical and mechanical properties. Nanocomposite hydrogels, a novel category of hydrogels, have received great attention both ...

  • publication . Article . 2015
    Open Access Persian
    Authors:
    Khezrollah Khezri; Vahid Haddadi-Asl; Hossein Roghani-Mamaqani;
    Publisher: Iran Polymer and Petrochemical Institute

    Polystyrene/MCM–41 nanocomposites were synthesized by atom transfer radical polymerization (ATRP) at 110°C. Activators generated by electron transfer (AGET) and activators regenerated by electron transfer (ARGET), as two novel initiation techniques, for ATRP were used. ...

  • فرضیه: فرایند نورکاتالیزی به‌دلیل کانی‌زایی (معدنی‌شدن) کامل آلاینده‌ها و سازگاری با محیط زیست می‌تواند جایگزین مناسبی برای روش‌های متداول تصفیه پساب دارویی باشد. در این پژوهش، با توجه به ضعف‌های به‌کارگیری نانوذرات نورکاتالیزگر بر پایه TiO2 همچون انبوهش و مشکل جداسازی،...

  • publication . Article . 2013
    Open Access Persian
    Authors:
    M. Ehsani; M. Badripour; M.H.R. Ghoreishy;
    Publisher: Iran Polymer and Petrochemical Institute

    Improvements in the properties of ordinary sidewall compound (NR/BR) with the addition of EPDM by reactive processing method were evaluated. The results show that ozone resistance of these sidewalls was improved with increased addition of EPDM. Also the tensile strength...

  • publication . Article . 2019
    Open Access Persian
    Publisher: Iran Polymer and Petrochemical Institute

    فرضیه: مونومر متیل ‌‌استیرن از مشتقات استیرن است که از قرارگرفتن گروه متیل روی گروه بنزنی یا وینیلی به‌وجود می‌آید. پلی(‌متیل ‌استیرن) افزون بر خواص مشابه پلی‌استیرن دارای خواصی ویژه از جمله چگالی کمتر و دمای انتقال شیشه‌ای بیشتر نسبت به پلی‌استیرن است که محدوده دمای عم...

  • publication . Article . 2013
    Open Access Persian
    Authors:
    Hassan Arabi1; Matin Ghafari; Gholamhossein Zohuri; Saman Damavandi; Saeid Ahmadjo;
    Publisher: Iran Polymer and Petrochemical Institute

    The late transition metal catalysts based on end group of transition metals in the periodic table like Ni, Fe, Co, Pd, Pt were developed rapidly in polyolefin industrial productions. These metals with suitable ligands exhibited specific properties and appropriate activi...

  • publication . Article . 2015
    Open Access Persian
    Authors:
    Mohsen Khademian; Hossein Eisazadeh; Mohsen Ghorbani; Alireza Shakeri;
    Publisher: Iran Polymer and Petrochemical Institute

    Polyaniline (PANI) is one of the most interesting conducting polymers due to its low cost and easy availability of raw materials, easy synthesis, good environmental stability and controllable electrical conductivity and redox properties. In recent years it has been show...

  • publication . Article . 2017
    Open Access Persian
    Authors:
    Hamed Rikhtegar; Seyed Jamaleddin Peighambardoust; Abdolreza Mirmohseni;
    Publisher: Iran Polymer and Petrochemical Institute

    The progress in scientific and technical products and increasing needs for advanced electrical and electronic devices have motivated researchers to investigate new ideas in this field. One of the main challenges in this way is the connection between microchips and other...

388 research outcomes, page 1 of 39